Question

One of the biggest problems with telephone surveys is that

A. the cost is higher than other methods.
B. people often refuse to participate.
C. they're too impersonal.
D. it takes too long to collect the results.

Answer 1

I think the answer is probably B or C. But if i had to choose one id chose B cause lets face it who wants to sit threw a boring survey that people have little to no care about.

Answer 2

The biggest problem is that people often refuse to paticipate
(I have to confess I don't participate in them either)