At a Large University, a Simple Random Sample of Five

Multiple Choice

At a large university, a simple random sample of five female professors is selected, and a simple random sample of 10 male professors is selected. The two samples are combined to give an overall sample of 15 professors. The overall sample is:

A) a simple random sample.
B) biased due to imbalance.
C) a stratified sample.
D) All of the answer options are correct.