Answer
D
Explanation
When you're taking someone else's pulse, you shouldn't use your thumb to take it because you might confuse your pulse for theirs.
C) Animal vector; Lyme disease ( it's spread by animals or bugs )
B) Direct contact; Staphylococcus ( could get it from touching someone that has it )
A) Sexual contact; Human papilloma virus
Good luck! (:
the question is confusing maybe another person can answer it