When a Beekeeper Places His Hives of Bees in an Orchard

Multiple Choice

When a beekeeper places his hives of bees in an orchard so that the bees can gather nectar to produce honey,the bees pollinate the orchard,which increases the yield of fruit.This benefits

A) only the beekeeper.
B) the beekeeper, but it creates a negative externality because the bees are a hazard to the orchard owner.
C) only the owner of the orchard.
D) both the beekeeper and the orchard owner.