Add Simplify, If Possible $\frac{9}{8 x^{2}}+\frac{3}{8 x^{2}}$ A) $\frac{3}{2 x^{2}}$ B) $\frac{3}{4 x^{4}}$

Multiple Choice

Add. Simplify, if possible.
- $\frac{9}{8 x^{2}}+\frac{3}{8 x^{2}}$

A) $\frac{3}{2 x^{2}}$
B) $\frac{3}{4 x^{4}}$
C) 3
D) $\frac{2}{3 x^{2}}$