Question

even when there are disagreements, the family of two parents and five children makes₁ make₂ peace.
option 1: makes
option 2: make

Explanation:

The subject here is "the family of two parents and five children", which is a collective noun. When a collective noun refers to the group as a unit, the verb is singular; but when it refers to the members of the group acting individually, the verb is plural. In this context, the family members (parents and children) are acting to make peace, so we use the plural verb "make". So Option 2 is correct.

Answer:

Option 2: make