I have reached a point in my life I am supposed to make decisions of my own.A. which B.

问题补充：

I have reached a point in my life I am supposed to make decisions of my own.

A. which

B. where

C. how

D. why

答案：

A. which

(答案→)B. where

C. how

D. why

解析：B 考察定语从句，把point作为表示地点的名词，在从句中做状语，使用where，也可以使用in which。故B正确。