Given the Average Outcomes for the Treated and Control Groups

Multiple Choice

Given the average outcomes for the treated and control groups, and their respective sample standard deviations how does the number of observations impact the p-value of a hypothesis test?

A) Only increasing the number of treated will lower the p-value.
B) Only increasing the number of control groups will lower the p-value.
C) Only increasing the number of treated will raise the p-value.
D) None of the answers is correct.