17. Answer "T" (for "True" ) if the given assertion is always true. Otherwise, answer "F" (for "False"). (a) The present value of an ordinary annuity of n > 2 payments of R > 0 with periodic interest rate r > 0 is the sum of all payments taken at the start of the term of the annuity. (b) If a demand equation is p = where q > 0 is quantity, then demand is clastic at 39 + 1 q = 10. (c) If he is a function defined for all positive real numbers and h'(x) = In(x) for all s > 0 and h(e) = 1, then h(1) = 0. (d) The value of / re dx is (e) If a > 1 is a constant and f(x) =51 + In(ar), then S'(-1) = 14