Answer with explanation:

Monique is factoring the expression 4x+16xy Her work is shown below.  

Factors of 4 x→: 1, 2, 4, x

Factors of 16 x y:→ 1, 2, 4, 8, 16, x, y

G CF: 4 x

Factored expression: 4 x(0+4 y)→Incorrect

→4 x +16 x y= 4* x + 4 *4* x* y

  = 4* x* (1+4 y)

while writing the factored expression, we have to break the terms into smaller  terms that is into monomials and  then we should take out the common factor between the two terms.

Option D:  Monique made an error when writing the factored expression.