In a particular experiment, a researcher monitored plant growth in one group of plants by
varying the amount of sunlight the plants were exposed to. Another group of plants received
the same amount of sunlight each day. He found that the amount of sunlight had a direct
effect on plant growth.

In this experiment, if the results do not turn out as expected it may be necessary to…

A.drop the experiment and choose a different topic

B.create a conclusion that you know is correct

C. revise your hypothesis

D.manipulate the experiment so the results come out as you want them

E.change the data