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Expression of Ideas / Rhetorical Synthesis Difficulty: Easy

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

Angana Chaudhuri is a scientist.
Chaudhuri studies sedimentary rocks.
A scientist who studies sedimentary rocks is called a sedimentologist.
Shale, chalk, and sandstone are examples of sedimentary rocks.

The student wants to identify what type of scientist Chaudhuri is. Which choice most effectively uses relevant information from the notes to accomplish this goal?

Chalk is a type of sedimentary rock.

Some scientists study shale, chalk, and sandstone.

There are scientists who study sedimentary rocks.

Chaudhuri is a sedimentologist.

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Explanation

Choice D is the best answer. The sentence identifies the type of scientist Chaudhuri is, noting that she is a sedimentologist.

Choice A is incorrect. The sentence provides an example of a type of sedimentary rock; it doesn’t identify what type of scientist Chaudhuri is. Choice B is incorrect. The sentence indicates types of rock that some scientists study; it doesn’t identify what type of scientist Chaudhuri is. Choice C is incorrect. While the sentence states that some scientists study sedimentary rocks, it doesn’t identify Chaudhuri as this type of scientist.