Explain the difference between a population and a sample. Choose the correct answer below. A. A population is the entire group that is being studied while a sample is a person or object that is a member of the population being studied. B. A population is the entire group that is being studied while a sample is a subset of the population that is being studied. C. A population is a person or object that is a member of the sample being studied while a sample is the entire group that is being studied. D. A population is a subset of the sample that is being studied while a sample is the entire group that is being studied.