I would use it that was me like
Dear,
Answer
The extent of Shakespeare’s legacy 450 years on from his birth is incalculable. But this, of course, does not stop some from trying.
Explanation:
Who car?? That can't be right, so D is wrong.
I don't think there is a simple plural for who. C is wrong.
B means who is. So B is not right either who is car is parked in ...
It is A or 1. Whose car ... Whose is a possessive pronoun. It is the answer.
A. they intentionally stop thinking
d. they often cannot fall asleep and have trouble sleeping peacefully