Question

bees provide a service for the flowers by pollinating them, and in exchange the flower produces a sugary nectar for the bees.
commensalism
parasitism
mutualism

Explanation:

Mutualism is a symbiotic relationship where both species benefit. Bees benefit from the nectar, and flowers benefit from pollination. Commensalism is when one species benefits and the other is unaffected. Parasitism is when one species (parasite) benefits at the expense of the other (host).

Answer:

C. mutualism