In General, Experiments Can Best Be Described as a Method

In general, experiments can best be described as a method whereby

A) a sample of the population are polled to determine their opinions and attitudes.
B) researchers believe in looking for emerging concepts after the experiment is begun.
C) researchers test for evidence of a social process by comparing a small group of people who are chosen to be as similar as possible.
D) randomization and replication are not considered important.