Which of the Following Is Correct with Respect to Surveys

Multiple Choice

Which of the following is correct with respect to surveys?

A) Questionnaires are not generally necessary in surveys.
B) The accuracy of surveys is routinely very high.
C) When using surveys, a random sample is usually better than a representative sample of consumers.
D) Online surveys are growing in popularity because the company gets immediate results.
E) All of these are correct.