A simple random sample of 1200 adult Americans is selected, and each person is asked the following question: "In light of the huge national deficit, should the government at this time spend additional money to establish a national system of health insurance?" Only 39% of those responding answered "Yes." This survey ____.
a. is reasonable accurate since it used a large simple random sample.
b. needs to be larger since only about 24 people were drawn from each state.
c. probably understates the percent of people who favor a system of national health insurance.
d. is very inaccurate but neither understates nor overstates the percent of people who favor a system of national health insurance. Because simple random sampling was used, it is unbiased.
e. probably overstates the percent of people who favor a system of national health insurance.