If more people try to buy a product because they have just become aware of its outstanding quality, which of the following most accurately describes what had increased

So let's imagine that people find out that the street food next door sells the best food. They would then likely make queues to get it, and the street food place might decide to increase the prize to increase its profit (and decrease the queue). This is likely what would happen - the prize would increase.

And what already increased is the demand for the specific good.