The derivative of sine-cubed of 2 theta with respect to theta is equal to which of the following?

W) Cosine-cubed of 2 theta

X) 3 sine-squared of 2 theta

Y) 6 sine-squared of 2 theta cosine of 2 theta

Z) 6 cosine-cubed of 2 theta sine-squared of 2 theta
Y) 6 sine-squared of 2 theta cosine of 2 theta