Question

how can something that could be a need become a want?

Answer 1

The same way a want can become a need.

Answer 2

A) if it is highly desired
B) if the need is already fulfilled
C) if it is not desired
D) if the need is not fulfilled

Answer 3

It looks like A.

Take a phone for example. If you really need a new phone but your current one already works, that means you want a phone. so you desire (want) a new phone.

If you already got a new phone, it isn't a want anymore or a need.
If you don't want a new phone... it isn't a need.
If you still haven't gotten a new phone, you forget it over time and realize you didn't really need it.