A probability sampling method in which we randomly select one of the first k elements and then select every k^th element thereafter is _____ sampling.

A) stratified random
B) cluster
C) systematic
D) convenience

Probability Sampling

A sampling method in which every member of the population has a known, non-zero chance of being selected, ensuring representativeness and allowing for the calculation of sampling error.

Systematic Sampling

A probability sampling method in which we randomly select one of the first k elements and then select every kth element thereafter.