Find the derivative. to a. by evaluating the integral and differentiating the result. b. by differentiating the integral directly. a. Evaluate the definite integral. +10 (Simplify your answer. Use integers or fractions for any numbers in the expression.) Find the derivative of the evaluated integral. +10 au du = 1 Simplify your answer. Use integers or fractions for any numbers in the expression.) b. Which of the following is the correct way to find the derivative of the given integral directly? O A. The function cannnot be differentiated using the Fundamental Theorem of Calculus. O B. Substitute t' for u in the function in the integrand, then multiply by the derivative of t 10. O C. Substitute t" for u in the function in the integrand, then multiply by to O D. Substitute t for u in the function in the integrand. + 10 Therefore, at ] Jus au- (Simplify your answer. Use integers or fractions for any numbers in the expression.)