The managers of a large company wished to know the percentage of employees who feel​ "extremely satisfied" to work there. The company has roughly 33,000 employees. They contacted a random sample of employees and asked them about their job​ satisfaction, obtaining 492 completed responses. How does their study deal with the three Big Ideas of​ sampling?
Choose the correct answer below.
A.
They gathered data from only a part of the large population of​ employees, they selected that part at​ random, and a sample size of several hundred is reasonable.
B.
They selected the employees at​ random, but their sample size is only a small fraction of the population and the population is too large to obtain a representative sample.
C.
They gathered data from only a part of the large population of​ employees, they selected that part at​ random, but their sample size is only a small fraction of the population.
D.
They selected the employees at​ random, a sample size of several hundred is​ reasonable, but the population is too large to obtain a representative sample.