Because we have accent and they have phrases that are different from English
Answer:
the interaction consumes more time, and relationships become more complex
Explanation:
A group is a collection of two or more people who share some kind of relationship and communication, and collaborate toward some shared purpose. Thus, as a group changes in size it also changes in complexity, so the relationship, interaction and communication among its members may affect their commitment and groupwork.
A.
It is indeed a pun.
The writer's purpose of this may have been to teasingly warn a character. You can easily cancel out the other answer options as well.
You do 280/40 which equals 7. So it takes the train 7 hours to go 280 miles.