Like honeybees, which are invaluable for agriculture, wild bumblebees also play a significant role in crop pollination. Though people are more familiar with honeybee die-offs — such as with colony collapse disorder — wild bumblebees have been struggling too. A handful of bumblebee species have declined by up to 96 percent in the U.S., according to the National Agricultural Library’s website.

Question

The causes have been largely understudied, although pesticides, infectious disease and shrinking habitat due to climate change have been suspected, said Samantha Alger, an ecologist from the University of Vermont who led the new research.

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Question
Use the article to answer the question.

How does the “What they found” section refine the central idea?

(1 point)
Responses

It suggests the author’s initial claims were not completely accurate and adjusts them.
It suggests the author’s initial claims were not completely accurate and adjusts them.

It uncovers the specifics of what makes wild bees sick and answers the question in the title.
It uncovers the specifics of what makes wild bees sick and answers the question in the title.

It reveals the advances that have been made on the topic since the studies began.
It reveals the advances that have been made on the topic since the studies began.

It provides additional nuance that helps readers understand how complex the issue is.
It provides additional nuance that helps readers understand how complex the issue is.
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Answer 1

The correct response is:

It provides additional nuance that helps readers understand how complex the issue is.

This choice indicates that the "What they found" section adds depth to the discussion about the challenges facing wild bumblebees, highlighting the complexity of the factors involved rather than just focusing on the general decline.