Which of the Following Statements Is True About Snowball Sampling

Multiple Choice

Which of the following statements is true about snowball sampling?

A) In snowball sampling a decision rule is used to indicate whether sampling should be continued or whether enough information has been obtained.
B) Snowball sampling is used in industrial buyer-seller research to identify buyer-seller pairs.
C) In snowball sampling an initial group of respondents is selected,usually at random.
D) Both B and C are true.