A California study concluded that by following 7 simple health rules a man's life can be extended by 11 years on the average and a woman's life by 7 years. These 7 rules are as follows: no smoking, regular exercise, use alcohol moderately, get, 7 to 8 hours of sleep, maintain proper weight, eat, breakfast, and do not eat between meals. In how many ways can a person adopt five of these rules to follow?
(a) If the person presently violates all 7 rules?
(b) If the person never drinks and always eats break-fast?