which of these is an example of multi stage sampling

CHALLENGE 2: Sampling Which of these is an example of multi-stage sampling? a.) Dividing the total population of New York into groups and then selecting people in proportion from these groups. O b.) Dividing the population of New York into groups and then making simple random samples from those groups. c.) Choosing New York as a sample, then selecting a sample O of zip codes within New York, then sampling the names of people living in those zip codes. O d.) Randomly selecting elements from the entire population of New York SUBMIT MY ANSWER OL