To test a new drug that has the potential of curing people of the common cold, a company asked human volunteers who were coughing and sneezing

to participate in a clinical study. The objective of the experiment was to test

whether the new drug could cure the volunteers in the experimental group of

the common cold.

To help researchers conclude that results are related to the new drug and not to the orange juice.

Explanation:

c

Explanation:

To help researchers conclude that results are related to the new drug and not to the orange juice.

i think that the best answer would be c.

tell me if im wrong : )

answer; a male inherits only one allele of the x-linked gene controlling hair color;