When conducting a survey, face-to-face or telephone interviews yield the most complete information, but are expensive and time consuming. An alternative is to mail surveys, but a major problem with mail surveys is that:



The survey return rate is actually low

Explanation:

A survey is simply the systematic gathering or collection of information from individuals and it has 3 (three) different research methods which are the Experimental, quasi-experimental and Non-experimental. In a survey, it entails Information gathering - polls, census, attitudes and theory testing/building, personality traits, social psychology.

mail Survey is defined simply as a self-administered, mail-back variety of questionnaire in which a stamped, addressed return envelope is enclose.

Advantages includes, Affordable wide geographical and perhaps more representative and others.

Disadvantages includes.nonresponsiveness, possible differences between respondents and nonrespondents, slowness of response to follow-up attempts and others. Survey return rate is low when responsiveness is poor.

i would say b probably