MEb_Balance

Imagine a uniform balance beam with one weight on the twelfth peg from the fulcrum. Which of the following would balance this weight?
 * A: Two weights on the fourth peg, and two weights on the second peg.
 * B: Two weights on the fifth peg and one weight on the second peg.
 * C: Two weights on the third peg and one weight on the sixth peg.
 * D: Wait! All of these statements are true.