Use the Following Information for Following Questions

Use the following information for following questions:
A group of 500 patients who suffer from hypothyroidism, a condition in which your thyroid does
not produce enough of certain hormones, were asked to participate in a study to determine
the effectiveness of a new medication. The patients were randomly divided into two groups,
one that was given the actual medication, and one that received a placebo pill. The results of
the study are below.
-Was the new medication effective in treating hypothyroidism?

A) Yes, a higher percent of patients who took the medication had improved symptoms than the patients who took the placebo.
B) Yes, both groups had more patients with improved symptoms.
C) No, the patients who took the placebo also had improved symptoms.
D) No, this was not a controlled experiment.