Arrange these numbers from least to greatest: 5 over 6 7 over 9 − 4 over 5.

A.
− 4 over 5 5 over 6 7 over 9

B.
7 over 9 5 over 6 − 4 over 5

C.
5 over 6 7 over 9 − 4 over 5

D.
− 4 over 5 7 over 9 5 over 6