Item — sat-dog

Medium Reading and Writing · Information and Ideas · None · MCQ

The primary source of information in this passage is a study that was conducted to examine the effect of a new type of fertilizer on the growth rate of a certain type of plant. The study involved two groups of plants: a control group and a treatment group. The control group was not given the new fertilizer, and the treatment group was given the new fertilizer. The study found that the plants in the treatment group grew at a significantly faster rate than the plants in the control group. Based on this information, the author concludes that the new fertilizer is effective in promoting plant growth. What is the most likely reason why the author includes information about the control group in this passage?

The author most likely includes information about the control group in this passage to

A
demonstrate that the new fertilizer is effective in promoting plant growth.
B
explain how the study was designed and conducted.
C
provide a basis for comparing the growth rates of the two groups of plants.
D
suggest that the new fertilizer may have unintended side effects.

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