选择题
2014 AMC 8 Problem 18: Four Births
Four children were born at City Hospital yesterday. Assume each child is equally likely to be a boy or a girl. Which of the following outcomes is most likely?
2014 AMC 8 第18题 ：四次分娩
昨天有四个孩子在市立医院出生。假设每个孩子都同样可能是男孩或女孩。以下哪种结果最有可能？
A.
all 4 are boys
B.
all 4 are girls
C.
2 are girls and 2 are boys
D.
3 are of one gender and 1 is of the other gender
E.
all of these outcomes are equally likely