Answer:
The answer is 1. classical conditioning.
Explanation:
Classical conditioning refers to the association of a conditioned stimulus (the alcohol in this case) with an unconditioned stimulus (the pain produced by the vaccinations), thus provoking an conditioned response (fear).
Russian scientist Ivan Pavlov is famous for his research on classical conditioning. In one experiment, he would ring a bell every time he was going to feed a dog. Soon, the dog started salivating at the sound of the bell.
I believe the answer is: leading causes of death, years of potential life lost, economic cost to society
Leading cause of death gives some clue for the administrators to identify the core of the problem. Both years of potential life lost and economic cost is used as factors of consideration to determine whether the financial allocation that they made for prevention and control is proportionate to the financial benefit that might occurs in the future.
