Which of the Following Is True

Which of the following is true?

A) Because of the Commerce Clause, states do not have any power to regulate commerce.
B) In order for the federal government to have power to regulate commerce, the commerce in question must actually cross state lines.
C) The states' police power gives states the power to regulate intrastate and much interstate business within their borders.
D) Although a state cannot regulate interstate commerce within its borders, it has full power to prevent interstate business activities within its borders.
E) Cases involving interstate commerce are decided under strict scrutiny.