A researcher is conducting a study on eating disorders. Using a list of recent participants in the online Weight Watchers program, she randomly selects a name from the alphabetized list. She then chooses every tenth person from that point on to include in her study. What is this sampling plan and example of?A. Judgmental SamplingB. Random SamplingC. Systematic SamplingD. Stratified SamplingE. Cluster Sampling