The School Nurse Gets a Call from a Caregiver Who

The school nurse gets a call from a caregiver who is planning to send her child to summer camp, but recently heard there was a case of Rocky Mountain spotted fever at the camp the previous year. The mother asks, "What causes Rocky Mountain spotted fever?" The best answer by the nurse would be:

A) the bite of an infected tick, which is carried by dogs and wild rodents
B) a bite from an infected species of Mexican free-tail bats
C) contact with bodily fluids of a child who has the disease
D) airborne droplets spread by coughing or sneezing