The answer is true because I used to play tennis
Scarcity-fundamental economic problem facing all societies that results from a combination of scarce resources and people's virtually unlimited wants
I would disagree.
It is not always important to be noticed, because you don't have to depend on other people's approval. If you are satisfied with your accomplishments, why does it matter if someone else is going to praise you for them or not? You should be happy, regardless of other people's opinions and thoughts.
It will cause a change in the quantity demanded. There will be the same demand, but if the price goes up less people will buy the papayas.