Identify the Type of Sampling Used

Multiple Choice

Identify the type of sampling used.
-In a recent online survey, participants were asked to answer ʺyesʺ or ʺnoʺ to the question ʺAre you in favor ofstricter gun control?ʺ 6571 responded ʺyesʺ while 4137 responded ʺnoʺ. There was a fifty-cent charge for thecall. What sampling technique was used?

A) convenience
B) simple random
C) cluster
D) stratified
E) systematic