Peter is considering the schedule risks of 4 of his project's activities. Based solely on 3 point duration estimates of these activities, which of the following activities' duration estmates should he consider the most risky:

A) optimistic = 16days; most likely = 19days; pessimistic = 23days

B) optimistic = 1day; most likely = 3days; pessimistic = 12days

C) optimistic = 12days; most likely = 15days; pessimistic = 19days

D) optimistic = 8days; most likely = 9days; pessimistic = 10days

Answer given is B