Which characteristic belongs to the primary function

Your answer is D

Explanation:

It has a representation function which is its main function since through the vote, we elect a representative who will be in charge of presenting our interests before Congress. Inspect, analyze, test, examine, record, review, intervene and verify the functioning of the public administration, that is, the Executive Power.

The characteristic belongs to primary function is C gaining energy from creating new friendship

vapour or gas assuming atmospheriv pressure

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).