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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 a 2001 study, Wilby and Brown found that the presence of plant litter had a negative effect on seedling emergence.
• The study was conducted in a grassland setting in the United Kingdom.
• In a 2010 study, Clark and Tilman found that the presence of plant litter had a negative effect on seedling emergence.
• The study was conducted in a grassland setting in the United States.

The student wants to emphasize a similarity between the two studies. Which choice most effectively uses relevant information from the notes to accomplish this goal?

A

Over the years, researchers have examined the effect of plant litter on seedling emergence.

B

Wilby and Brown (2001) found that plant litter in a grassland setting in the United Kingdom had a negative effect on seedling emergence.

C

In studies by both Wilby and Brown (2001) and Clark and Tilman (2010), the presence of plant litter in a grassland setting was found to have a negative effect on seedling emergence.

D

Wilby and Brown conducted a study in the United Kingdom, whereas Clark and Tilman’s study was conducted in the United States.