The student wants to write a paragraph that focuses on the role of ch… | Verbal SAT Question

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Verbal·Expression of Ideas·Rhetorical Synthesis

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While researching a topic, a student has taken the following notes:

In the 1970s, a team of oceanographers exploring the Pacific Ocean floor off the coast of the Galapagos Islands discovered an unusual ecosystem in a place where they expected to find little, if any, life.
They found a collection of organisms, including giant tube worms and ghost-like fish, living in the absence of sunlight around hydrothermal vents, which are fissures in the ocean floor that release hot, mineral-rich water.
This ecosystem relies on a process called chemosynthesis, in which bacteria convert the chemicals from the hydrothermal vents into food.
This process supports a vibrant food web that includes the giant tube worms, which host the chemosynthetic bacteria and are eaten by the ghost-like fish, among other organisms.

The student wants to write a paragraph that focuses on the role of chemosynthesis in the ecosystem described in the notes. Which choice most effectively uses relevant information from the notes to accomplish this goal?

In the 1970s, oceanographers discovered an unusual ecosystem on the Pacific Ocean floor that includes giant tube worms and ghost-like fish living around hydrothermal vents.

Chemosynthesis is a process that supports a vibrant food web, including giant tube worms and the ghost-like fish that eat them.

In an ecosystem on the Pacific Ocean floor, chemosynthesis is a process in which bacteria convert chemicals from hydrothermal vents into food, which in turn supports a vibrant food web.

An ecosystem on the Pacific Ocean floor is home to a variety of organisms, including giant tube worms and ghost-like fish, and relies on a process called chemosynthesis.