Ali and Lavon are asked to write an expression to 3(4x + 4y)

Ali writes the expression 12x + 12y.

Lavon writes the expression 48xy.
Who is correct and why?


A. Ali is correct because 3(4x) + 3(4y) = 12x + 12y.

B. Ali is correct because 3 + 4x + 3 + 4y = 12x + 12y.

C. Lavon is correct because 3 • 4x • 4y = 48xy.

D. Lavon is correct because 3(16xy) = 48xy.