Suppose the risk-free interest rate is 4.2%. (a) Having $400 today is equivalent to having $ in one year? (Round to the nearest cent.) (b) Having $400 in one year is equivalent to having $ today? (Round to the nearest cent.) (c) Which would you prefer, $400 today or $400 in one year? $400 today $400 in one year (d) Does your answer depend on when you need the money? Why or why not? Yes, because if you didn't need it, it would not be worth $400. Yes, because if you did need the money today it would be more valuable than $400. No, because if you didn't need it then the $400 could be invested and would be worth more than $400 in one year. No, because if you did need it you could borrow $400 today