Biologists studying horseshoe crabs want to estimate the percent of crabs in a certain area that are longer than 35 centimeters. The biologists will select a random sample of crabs to measure. Which of the following is the most appropriate method to use for such an estimate?
A. A one-sample Z-interval for a population proportion
B. A one-sample Z-interval for a sample proportion
C. A two-sample Z-interval for a population proportion
D. A two-sample Z-interval for a difference between population proportions
E. A two-sample Z-interval for a difference between sample proportions