The Nurse Who Provides Care at a Wilderness Camp Is

The nurse who provides care at a wilderness camp is teaching staff members about measures that reduce campers and workers risks of developing Giardia infections. The nurse should emphasize which of the following practices?

A) Making sure not to drink water that has not been purified
B) Avoiding the consumption of wild berries
C) Removing ticks safely and promptly
D) Using mosquito repellant consistently