The critical period hypothesis refers to a period in one’s life

The critical period hypothesis refers to a period in one’s life extending from about ______.
A、age two to puberty
B、age three to puberty
C、age two to ten
D、none of the above
【正确答案】:A
【题目解析】:The critical period hypothesis refers to a period in one’s life extending from about age two to puberty.