please explain step by step

(1) (10 pts) Consider the accumulation function F(a) = / A(t) dt on the interval [-4, 5). The graph of the integrand A(t) is given below on the interval [-4,5). 4yaxis (a) Which of the following 1 = h(t ) describes F(4)? OF(4) D. 5 1-axis O Not enough evidence to justify any of the descriptions. Area = 8 (b) Evaluate F (5) F (5) = (c) Determine the interval(s) of the domain on which F is decreasing. F decreasing : (d) Determine the x-value at which F achieves its maximum. (e) Determine the z-value at which achieves its maximum