问题：
[单选题]Why do we take notes?
AMost of us may have a poor memory.
BIt helps us to refer to it later.
CIt is a way which proves that the text is read.
[单选题]Why do we take notes?
AMost of us may have a poor memory.
BIt helps us to refer to it later.
CIt is a way which proves that the text is read.
