The correct answer would be a paradox. A paradox is a figure of speech or a literary device.
He meets his class mates racist mother
This is true due to the fact that it will give you different points of view. Also if you have a good mixture of different people types then you will often have people who are stronger at certain things making it easier to solve different types of problems
I think it would be the first one
An apostrophe is usually used to show possesion.
