An Organization Would Like to Conduct a Survey of a Sample

An organization would like to conduct a survey of a sample of their membership to make conclusions about the entire membership. Given that they have a limited budget, they should focus their attention on

A) getting as large a sample as possible, even if they are all volunteers.
B) getting as large a sample as possible, even if they are not representative.
C) getting a representative sample.
D) getting a self-selected sample.