In conducting a study of sexual research, you collect your sample from walk-ins at a local doctor's office. This type of sample is a:

A. product of probability sampling.
B. random sample.
C. convenience sample.
D. systematic and representative sample of the local community

option C convenience sample

Explanation: Convenience sample method is one of the type of non- probability sampling method in research. It's is relatively used in clinical research because of its cheapness, relatively convenient and quick approach in it's use. It's al use because it is a closer and nearer area to the researcher environment and convenient for him also. It involves the collection of data or samples from hospitals, clinics e.t.c by the researcher that is closer and easily available and accessible to him. In this case, it is very important to the researcher that the sample from the patient or people to be used for the study be within the researcher's reach. This method of sampling is relatively cheap from start to finish and people or patients to uses are available anytime and always ready.