188. A company sells two types of life insurance policies (P and Q) and one type of health
insurance policy. A survey of potential customers revealed the following:
i) No survey participant wanted to purchase both life policies.
ii) Twice as many survey participants wanted to purchase life policy P as life policy Q.
iii) 45% of survey participants wanted to purchase the health policy.
iv) 18% of survey participants wanted to purchase only the health policy.
v) The event that a survey participant wanted to purchase the health policy was independent of the event that a survey participant wanted to purchase a life policy.
Calculate the probability that a randomly selected survey participant wanted to purchase exactly one policy.
(A) 0.51
(B) 0.60
(C) 0.69
(D) 0.73
(E) 0.78