With the help of the teachers and classmates, the boy worked hard and finally caught up with his classmates. Now he is _______ all the others.

With the help of the teachers and classmates, the boy worked hard and finally caught up with his classmates. Now he is _______ all the others.

1. A.
   as a good student as
2. B.
   as a student good as
3. C.
   as good a student as
4. D.
   as good as a student

With the help of the teachers and classmates, the boy worked hard and finally caught up with his classmates. Now he is _______ all the others.