What is the next step in solving the equation y-42=y-16?

A) Simplify the expression (y-4)2
B) Subtract the parentheses
C) Expand the expression (y-4)*(y-4)
D) Solve for y

Explanation: To solve the equation, we need to simplify the expression (y-4)2. By expanding the expression (y-4)*(y-4), we get y2-8y+16. Therefore, the correct option isC) Expand the expression (y-4)*(y-4).