Question

What was the purpose of colonies?

Answer 1

To extend the influence of the "mother country" 
to provide a source of raw materials for the "mother country" 
to provide a market for manufactured products of the "mother country" 
to provide a place for people to live, especially if the "mother country" is overcrowded. And I gave you information  so try to solve it and if you can't message me so I can give it to you.

Answer 2

Mostly A

A: You would want to settle in places that are rich in resources, for example, you wouldnt want to settle in antartica, because it isnt exactly suited for long term colonies there

B, C, and D are also possiblilites.

B: You can prove that you are more powerful, literally
C: Basically showing that you are powerful
D: More land= More space= More places for more people to stay, and if it is good land, then it = more people