Option B is right ans
Types Of Non-Probability Sample
In non-probability sampling, those who participate in a research study are selected not by random, but due to some factor that gives them the chance of participating in a study that others in the population do not have. Types of non-probability sample include:
Convenience Sample: As its name implies, this method uses people who are convenient to access to complete a study. This could include friends, people walking down a street, or those enrolled in a university course. Convenience sampling is quick and easy, but will not yield results that can be applied to a broader population.
Snowball Sample: A snowball sample works by recruiting some sample members who in turn recruit people they know to join a sample. This method works well for reaching very specific populations who are likely to know others who meet the selection criteria.
Quota Sample: In quota sampling, a population is divided into subgroups by characteristics such as age or location and targets are set for the number of respondents needed from each subgroup. The main difference between quota sampling and stratified random sampling is that a random sampling technique is not used in quota sampling;
Purposive or Judgmental Sample: Using a purposive or judgmental sampling technique, the sample selection is left up to the researcher and their knowledge of who will fit the study criteria.
https://www.geopoll.com/blog/probability-and-non-probability-samples/
