Which of the Following Statements Is Correct, Assuming That an Extension

Which of the following statements is correct, assuming that an extension is not requested?

A) A partnership must file Form 1065 no later than the 15th day of the fourth month after the close of the partnership's tax year.
B) A partnership must file Form 1120 no later than the 15th day of the fourth month after the close of the partnership's tax year.
C) A partnership must file Form 1065 no later than the 15th day of the third month after the close of the partnership's tax year.
D) Partnerships must file Schedule K-1 to show how income is allocated to partners no later than the 15th day after the close of the partnership's tax year.