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Answer:1. c. Convenience Simple2.d. Random Systematic3.b. Cluster Stratified4. a. Sampling MethodStep-by-step explanation:Each sampling method is different and requires a different approach.For example, a sample of many people will be a simple sampleHowever, let's consider this scenario: Pulling 50 names from the hat.This is a random sample as each name has an equal probaibility of being chosen from the list....