Damselflies are closely related to dragonflies and undergo a similar process of maturation. The female damselfly will lay her eggs in standing water, where larvae will hatch and grow. Growth is achieved by molting, where the exterior body layer is shed multiple times. At a certain point, the larvae will exit the water and prepare for their final molting. Adult damselflies will emerge with wings. Damselflies are not harmful to human beings, and insects make up the majority of their adult diet.

Why does the last sentence not belong in this paragraph?
A.It does not support the main idea presented in the first sentence.
B. It seems likely that some types of damselflies could harm humans.
C. It doesn't specify whether damselflies are considered to be insects.

B. It seems likely that some types of damselflies could harm humans.