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.The lemonade market in Jenny's neighborhood is more likely to be perfectly competitive if:

A) all of the kids advertise heavily.
B) each stand tries to get more customers by offering a different variety of lemonades and snacks.
C) each lemonade stand sells the same kind of lemonade.
D) some of the neighborhood parents build elaborate booths for their kids' stands while some kids sell from makeshift tables.