Step 1: The definition asked for is the framework that links people to one another within a community.
Step 2: That framework is termed social structure, which describes the stable arrangement of roles, statuses and relationships that gives a society its form.
Step 3: The distractors describe different ideas: social psychology examines individual behaviour in social contexts, social science is an umbrella discipline, and the scientific study of human inter-relationships is sociology rather than the relationships themselves.
Step 4: Matching the definition precisely to the term, social structure is the right choice.
\[\boxed{\text{Social structure}}\]