Which of the Following Is True Regarding Federal Taxation

Multiple Choice

Which of the following is true regarding federal taxation?

A) The United States Constitution explicitly grants the U.S.Congress the power to tax.
B) The taxes laid by Congress must be uniform across the states.
C) Congress can legitimately use taxes to encourage the development of certain industries and discourage the development of others.
D) The Constitution explicitly grants Congress the power to tax; the taxes laid by Congress must be uniform across the states; and Congress can legitimately use taxes to encourage the development of certain industries and discourage the development of others.
E) None of these.