According to which theory are people attracted to prospective partners who they believe will provide them with

Question

is it:

filter theory

equity theory

exchange theory

functionalist theory

Answer 1

I'm going to have to guess at the rest of your question, but from what IS there, I'd have to say the answer is:

functionalist theory

In functionalism, everything/everyone has a job to do - in a partnership, you're looking for someone to complement your skills/needs/whatever.