i need an answer to this question

2 pollsters surveyed the same number of people from 2 different populations of approximately equal size.pollster (a) concluded 95% confident the mean weight of his pop to be 150+16.3. pollster(B) concluded 95% her mean weight of her pop 150+11.6. what is true. a) standard error of both is the same. b) standard deviation is the same. c) people in pop (a) are less alike in weight than those surveyed by pollster b. or d)a random person in pop(a) is more likely to weigh between 145 and 155 than in population b