Answer
$\frac{5}{12}$ (Choice C)
Work Step by Step
$\frac{3}{5}$a = $\frac{1}{4}$
$\frac{3}{5}$a $\times$ ($\frac{5}{3}$) = $\frac{1}{4}$ $\times$ ($\frac{5}{3}$) (getting a by itself by multiplying $\frac{5}{3}$ on both sides)
$\frac{a}{1}$ = $\frac{1 \times 5}{4\times3}$
a = $\frac{5}{12}$
