If the Government Wanted to Maximize the Number of Peoplereceiving

If the government wanted to maximize the number of peoplereceiving a flu vaccination, it should:

A) impose a mandatory vaccination program.
B) provide research grants to those firms engaging in increasing the supply of vaccine.
C) give a subsidy to people who are vaccinated.(True Answer ) Correct
D) impose a tax on people who are unwilling to be vaccinated.