I was so happy I decided to give her a treat.

I was so happy I decided to give her a treat.
A、I was so happy I decided tomake her pleased too.
B、I was to happy I decided tobe kind to her.
C、Since I was very excited， I made a decision that I would be kind to her.
D、Since I was very excited， I thought I would entertain her by buying her something.
正确答案：D