Lice attach to human hair and enjoy the warmth given off by the human. They eat
tiny amounts of human blood, causing the human to have little red bumps that
are quite itchy. They may also transmit diseases to a human.

A mutualism
B commensalism
C competition
D parasitism

Parasitism

Explanation:

The only creature that is benefiting are the lice while the human is slightly being harmed making this an example of parasitism.

hope that helped some

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.