Simplify $(7\large\frac{1}{4} - 6 \large\frac{1}{4})$ of $(\large\frac{2}{5} + \large\frac{3}{15})$

Question

( A )$ \large\frac{1}{5}$
( B ) $\large\frac{4}{5}$
( C ) $\large\frac{2}{5}$
( D ) $\large\frac{3}{5}$