Question

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. But instead of two groups, these volunteers were randomly divided into three groups and treated as follows: Why was a second control group was included in this experiment?

Answer 1

the correct (Answer)

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

...This is on A. P. e X.

i hope this helps you understand.

(have a good day)

Answer 2

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

Step-by-step explanation:

I could be wrong, Hope this helps