What is the main purpose of taxation?
a. to stimulate the economy and encourage spending
b. to pay for government programs and operations
c. to build up a reserve money supply and reduce debt
d. to promote economic equality among citizens

yes, because it is run by a governmental organization.

Websites that belong to governmental organizations are reliable sources of information. This is because the information that they present has been carefully gathered and validated. The way in which we can recognize these websites is by their names (in this case, United States Center for Disease Control) and by the inclusion of the abbreviation "gov" in their address.