Simplify $\left[\left(5 \frac{1}{4} \div 3 \frac{1}{2} \times \frac{5}{12}\right)-\frac{3}{16}\right] \div\left(3 \frac{4}{7} \div \frac{5}{14}\right.$ of $\left.6 \frac{2}{3}\right)$ of $1 \frac{1}{3}$.

$\frac{5}{32}$ $\frac{17}{32}$ $\frac{3}{32}$ $\frac{7}{32}$

$\frac{7}{32}$