In this question, sentence is given with blank to be filled in with an appropriate word. Four alternatives are suggested for question. Choose the correct alternative out of the four.
In a classroom students are to be trained to love ______

Options

A. each other
B. all others
C. one another
D. altogether

Answer

C

Explanation

one another (Pro.) : used when you are saying that each member of a group does something to or for the other people in the group
one another and each other are Reciprocal Pronouns.
Bob and Tom were quarrelling with each other.
The three winners congratulated one another.
Here, one another is the right usage.