Answer: Option (b) is the correct answer.
Explanation:
Proximity means closeness, that is, whether two or more individuals are close in a relationship, time, space etc it is known as proximity between them.
Therefore, when Joanna and Janna are sitting next to each other then it means there is less space between them as they are sitting together.
Hence, we can conclude that this is an example of the importance of proximity in making friends.