The true statement about the Electoral College is:
Item 4: The Constitution leaves it up to each state's legislature to make the laws on how that state's electors are chosen.
The other statements are inaccurate: electors are generally expected to vote for the candidate that wins the popular vote in their state (Item 2 is misleading), if no candidate receives a majority of electoral votes, the president is chosen by the House of Representatives, not the Senate or the Supreme Court (Item 3 is incorrect), and the Electoral College does not give Congress more control over the president (Item 1 is misleading).