3. A marginal-revenue function is given by dr = ge" +q where q 2 0 is quantity and r(0) = 0. The value of r(1) is (A) 1.0 (B) 1.875 (C) 2.0 (D) 1.5 (E) 1.25 (F) 23 (G) 1.75 (H) None of (A) - (G). 4. Which one statement below is true for the function /(2) =173( 6-2) (A) It has a local minimum at both = = 0 and r = 4, and a local maximum at s = 6. (B) It has a local minimum at both = = 0 and r = 6, and a local maximum at s = 4. (C) It has a local minimum at both r = -4 and r = 0, and r = 6 is a critical value, but there is no local extrema at s = 6. (D) It has a local maximum at both z = 0 and s = 4, and z = 6 is a critical value, but there is no local extrema at = = 6. (E) It has a local maximum at a = 4, and both s = 0 and r = -6 are critical values, but there is no local extrema at either = = 0 nor = -6.(F) It has a local maximum at = = 4, and both = = -6 and = 0 are critical values, but there is no local extrema at either s = -6 nor at $ = 0. (G) It has a local minimum at = = 0, and a local maximum at r = 4, and I = 6 is a critical value, but there is no local extrema at s = 6. (H) None of (A) - (G)