It is universally acknowledged that making the_________ from you

It is universally acknowledged that making the_________ from youth to adulthood can be very painful.
A、transmission
B、transition
C、transportation
D、transformation
【正确答案】：B
【题目解析】：A. transmission的意思是“传送、播送”；B. transition的意思是“过渡”；C. transportation表示“交通”；D. transformation表示“变化”。因此选B. transition，“过渡”。全句翻译：众所周知从青春期到成年的过渡是痛苦的。