Use the Associative Property to Rewrite the Expression, and Then $\frac{1}{3}(3 y)$

Multiple Choice

Use the associative property to rewrite the expression, and then simplify the result. $\frac{1}{3}(3 y)$

A) $\frac{1}{9} y$
B) $\frac{1}{6} y$
C) 1
D) $y$
E) $9 y$