A Rise in the Quantity Demanded of Lemons Can Be

A rise in the quantity demanded of lemons can be attributed to a

A) decline in the number of people drinking lemonade.
B) leftward shift in the supply curve of lemons.
C) rightward shift in the supply curve of lemons.
D) cold spell which makes people want less lemonade.
E) decrease in the price of artificial lemon flavouring.