The dot plot shows the number of raffle tickets bought by each person.

Number of Raffle Tickets Bought
A dot plot going from 0 to 5. 0 has 4 dots, 1 has 0 dots, 2 has 4 dots, 3 has 6 dots, 4 has 3 dots, 5 has 5 dots.

Where is the peak of the dot plot?
1
3
5
6