Having sized up the material the Lord had given her to mold， she [my mother] didn"t overestimate what she could do with it.

Having sized up the material the Lord had given her to mold， she [my mother] didn"t overestimate what she could do with it.
A、...finding the material too thin， she decided to do what she could with it.
B、...knowing what I was， she didn"t expect me to achieve great success.
C、...she was realistic about what I could become，for I lacked ambition.
D、...she knew she couldn t make anything valuable out of the material from God.
正确答案：B