in spite of and despit of

[Huda2]

hi,
please see the following:
1. __________ getting the highest result in the class, John still had problems with the teacher.

(A) Despite of
(B) In spite of
(C) Even though
(D) Nonetheless
b here is best choise.
I'm very confused between a and b, why b is best?
thanks

[Morteza]

Hi,
A is incorrect because "despite" doesn't need "of".
Morteza

[Huda2]

oh, thanks
i know that , but i didn't notice