What is the social intelligence hypothesis?

Group of answer choices

That social intelligence depends on cultural rather than biological evolution.

That social intelligence arose as a by-product of increased tool use, which, in turn, developed the social parts of the brain.

That social intelligence is linked to a theory-of-mind mechanism, caused by evolutionary pressures.

Evolutionary pressures to be socially smarter lead to more general changes (e.g. to brain size) that support increased intellect in non-social domains.