Suppose the lengths of human pregnancies are normally distributed with u = 266 days and o = 16 days. Complete parts (a) and (b) below. "type mineyeIs VI ueLIllials.) O A. The proportion of human pregnancies that last more than days is X B. The proportion of human pregnancies that last less than 250 days is 0. 1587 . 250 266 Provide a second interpretation of the area using the given values. Select the correct choice below and fill in the answer boxes to complete your choice. (Type integers or decimals.) O A. The probability that a randomly selected human pregnancy lasts more than days is O B. The probability that a randomly selected human pregnancy lasts less than days is