Tubert-Bitter et al. (A-9) found that the number of serious gastrointestinal reactions reported to the British Committee on Safety of Medicine was 538 for 9,160,000 prescriptions of the anti-inflammatory drug piroxicam. This corresponds to a rate of .058 gastrointestinal reactions per 1000 prescriptions written. Using a Poisson model for probability, with find the probability of

(a) Exactly one gastrointestinal reaction in 1000 prescriptions

(b) Exactly two gastrointestinal reactions in 1000 prescriptions

(c) No gastrointestinal reactions in 1000 prescriptions

(d) At least one gastrointestinal reaction in 1000 prescriptions