Read the Following Then Choose the Appropriate Test and Name

Read the following then choose the appropriate test and name the population(s) . A researcher asks a random sample of 200 men whether they had made an online purchase in the last three months. He wants to determine whether the proportion of men who make online purchases is less than 0.18.

A) One- proportion z- test; the population is all adults who make online purchases.
B) Two- proportion z- test; the population is the 200 men surveyed.
C) Two- proportion z- test; one population is all men who make online purchases and the other population is all men who do not make online purchases.
D) One- proportion z- test; the population is all men.