Drunkman decided to conduct his study using a telephone interview instead using a mailed questionnaire. Which is the most accurate way to sample?
A) a simple random sample from the directory of the town
B) a systematic sample of the student telephone directory
C) random-digit dialing using the 747 or 757 prefix
D) a quota sample with an equal number of students from each dormitory
E) a stratified sample from 100-, 200-, 300-, and 400-numbered courses
C
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a. True b. False