Students in that school are judged ________what they have achieved in their studies.[ ]

A. in spite of  

B. in charge of

C. in favor of  

D. in terms of

办公室有甲、乙、丙、丁4位同志，甲比乙大5岁，丙比丁大2岁。丁三年前参加工作，当时22岁。他们四人现在的年龄之和为127岁。那么乙现在的年龄是( )。

A．25岁

B．27岁

C．35岁

D．40岁