Jenny Sells Lemonade by the Street During the Summer Time

Jenny sells lemonade by the street during the summer time.Several other kids also sell lemonade in Jenny's neighborhood.
Refer to the information above.If the lemonade market is perfectly competitive and price is already at the equilibrium level,Jenny can increase her revenue if she:

A) decreases the price of lemonade and increases the output.
B) increases the price of lemonade and decreases the output.
C) increases both the price and output of lemonade.
D) keeps the price the same and increases the output.