Dr. Aisha Patel, a renowned marine biologist, has dedicated her career to studying the effects of aquatic pollution on marine ecosystems. Her groundbreaking research has led to significant advancements in our understanding of how pollutants affect marine life. Dr. Patel's work has made her a(n) _______ figure in the field of marine biology, inspiring many to follow in her footsteps and advocate for cleaner oceans. Her efforts have not only advanced scientific knowledge but also raised public awareness about the importance of protecting our oceans from pollution.

Which choice completes the text with the most logical and precise word or phrase?

In the narrative of 'The Brief Wondrous Life of Oscar Wao', the protagonist Oscar de León struggles with his identity and the weight of his family's curse. His journey is marked by a profound sense of isolation and a longing for love and acceptance. The transformation he undergoes is not just a fleeting moment of self-discovery. It is a ________ change that reshapes his understanding of himself and his place in the world. This evolution is crucial to the story's exploration of themes such as identity, legacy, and resilience.

Which choice completes the text with the most logical and precise word or phrase?

Exchange rates play a crucial role in international trade and finance. They determine how much one currency is worth in terms of another and can significantly impact the economy of a country. Factors such as interest rates, inflation, and political stability can influence exchange rates. For businesses engaged in international trade, understanding and predicting exchange rate movements is essential. By using various financial instruments and strategies, companies can ______ their exposure to exchange rate fluctuations, thereby protecting their profits and reducing risks.

Which choice completes the text with the most logical and precise word or phrase?

The following text is adapted from a financial guide on investment strategies. Sarah, a seasoned investor, is explaining the benefits of diversification to her friend, Mark. "Diversification is key," Sarah said. "By spreading your investments across different asset classes, you reduce the risk of losing everything if one market crashes. It's like not putting all your eggs in one basket. This way, even if one investment performs poorly, others may do well and balance out the losses. Over time, a diversified portfolio tends to yield more stable returns." Mark listened intently, realizing the wisdom in Sarah's advice.

Which choice best states the main purpose of the text?

The following text is from a technical article on operating systems.

Operating systems use various scheduling algorithms to manage the execution of processes. These algorithms include First-Come, First-Served (FCFS), Shortest Job Next (SJN), and Round Robin (RR). Each algorithm has its own strengths and weaknesses. FCFS is simple but can lead to long wait times. SJN is efficient but can cause starvation of longer processes. RR provides a balanced approach but may have higher overhead due to context switching.

Which choice best describes the overall structure of the text?