Which expression is equivlaent to (9x - 3 1/8) - (7x + 1 3/8)
A 2x - 4 1/2
B 16x - 4 1/2
C 2x - 1 3/4
D 16x - 1 3/4
A 2x - 4 1/2
B 16x - 4 1/2
C 2x - 1 3/4
D 16x - 1 3/4