Which of the following is most likely to be a government policy on global travel in response to disease? (1 point)
A. • Ask travelers to ensure they are sick when traveling so that the disease occurs during travel, not in the destination country.
B. • Ask travelers to quickly walk through open borders to minimize workers' exposure.
C. • Ask travelers to provide proof of vaccination before entering a country.
D. • Ask travelers to bring new diseases into a country to increase a population's immunity.