A "growth company" is one whose net earnings tend to increase each year. Suppose that the net earnings of a company at time t are being generated at the rate of 30 + 4t million dollars per year.

(a) Write a definite integral that gives the present value of the company's earnings over the next 4 years, using a 10% interest rate.

b)Compute the present value described in part (a) (a) Choose the correct definite integral below. A. integral_0^4 (0.1t)e^-(30+4t) B. integral_0^4 (30+4t)e^-0.1t dt C. integral_0^4 (30+4t)e^-30+47 dt D. integral_0^4 (0.1t)e^-0.1t dt (b) The present value is $| | million.