Two athletes, A and B, are attempting to qualify for an international competition in both the 5000 m and 10 000 m races. The probabilities of each qualifying are shown in the following table. Athlete 5000 m 10 000 m AB Assuming that the probabilities are independent, calculate the probability that

(a) athlete A will qualify for both races,

(b) exactly one of the athletes qualifies for the 5000 m race,

(c) both athletes qualify only for the 10 000 m race. (C)

(c) Given also that P(CU D) - }, find the value of p.