∫[0,x^(3),(t)/√(1+t^(3)),]

Find the derivative of the integral.
A. (3(x^3))/((1+(x^9))^0.5)
B. (x^3)/((1+x^9)^0.5)
C. (3x^3)/((1+x^3)^0.5)
D. (5x^3)/((1+x^6)^0.5)
E. (3x^5)/((1+x^3)^0.5)

see other post.