Use Euler's method to solve dB dt with initial value B = 900 when t = 0. = 0.04 B A. At = 1 and 1 step: B(1)~ B. At = 0.5 and 2 steps: B(1)~ C. At = 0.25 and 4 steps: B(1) D. Suppose B is the balance in a bank account earning interest. Be sure that you can explain why the result of your calculation in part (a) is equivalent to compounding the interest once a year instead of continuously. Then interpret the result of your calculations in parts (b) and (c) in terms of compound interest.