The Preamble to the United States Constitution includes the phrase "promote the general Welfare" because its authors knew which of the following?

a People can be expected to act in the best interests of the community.
b The government would have to set up welfare programs in the future.
c The government needed to protect its citizens from attacks by Native Americans.
d The government sometimes has to protect the interests of the community.

d The government sometimes has to protect the interests of the community.