Climate in coast region

Which of the following is not an example of scarcity? select the correct answer below: a) due to a lack of rain  in san diego, california, the amount of water for families is limited.b) crude oil was in short supply in the 1970s, leading to a quantity demanded  being greater than the quantity supplied.c) after textbook buyback season, amazon received an influx of used textbooks into their inventory.d) fresh water bass are on the decline due to disease.