Simplify the Numerical Expression Below, Expressing the Answer in Its $\frac { 63 } { 2 } \left( \frac { 7 } { 9 } - \frac { 1 } { 18 } \right)$

Multiple Choice

Simplify the numerical expression below, expressing the answer in its reduced form. $\frac { 63 } { 2 } \left( \frac { 7 } { 9 } - \frac { 1 } { 18 } \right)$

A) $\frac { 13 } { 4 }$
B) $\frac { 91 } { 4 }$
C) $\frac { 98 } { 2 }$
D) none of these