Question

53) Raghav is a teacher, He woulks hard
the welfare of his students.
The preposition to be used here is
A) for
B) to
c)of
D) after​

Answer 1

I think so

(A) For

Hope so it will help you..

Answer 2

for

Explanation:

Raghav is a teacher, He woulds hard for the welfare of his students.