Which algebraic expression is equivalent to the expression below?

48x-12y

A.
6(8x + 2y)
B.
6(8x - 2y)
C.
6(3x + 2y)
D.
12(8x + 2y)

Rena used the steps below to evaluate the expression , when . step 1: substitute into the expression. step 2: simplify the parentheses. step 3: evaluate the power to a power. step 4: use reciprocals and find the value. in which step did rena make the first error?