Perform the Indicated Operation and Express in Lowest Terms $\frac{13}{7 x^{2}}-\frac{11}{7 x^{2}}$

Multiple Choice

Perform the indicated operation and express in lowest terms.
- $\frac{13}{7 x^{2}}-\frac{11}{7 x^{2}}$

A) $\frac{2}{14 x^{4}}$

B) $\frac{7}{2 x^{2}}$

C) 2

D) $\frac{2}{7 x^{2}}$