判处罚金，应当根据( )决定罚金数额。

A．犯罪性质

B．社会危害性大小

C．犯罪情节

D．法律规定

— Tom is six and he is            his sister Jane. How old is Jane?

— Three. [ ]

A. twice as old as

B. two years older than

C. three years younger than

D. as old as