Suppose that you must choose an SRS of 20 of the 450 retail outlets in New York that sell your company's products. How would you label this

Suppose that you must choose an SRS of 20 of the 450 retail outlets in New York that sell your company's products. How would you label this population to select a simple random sample?

a) 001, 002, 003, ..., 449, 450

b) 000, 001, 002, ..., 449, 450

c) 1, 2, 3, ..., 449, 450