7. An excerpt from a multiple decrement table for an insurance policy is given below. The policy expires on the earliest event of death (j=1), surrender (j=2), and critical illness diagnosis (j=3) (a) Calculate the probability that a policy issued to 43 is surrendered between ages 47 and 50 . (b) Calculate 0.6p4800 under constant forces of transition between integer ages. (c) Calculate 0.9p4903 under uniform distribution of decrements between integer ages. (d) Calculate 5p42.401 under uniform distribution of decrements between integer ages