Movie ticket prices have been on a steady rise the past few years. Five years ago the ticket price was p = price. Two years ago prices increased by $2 a ticket and this year they have increased by $1. The ticket price change could be expressed as (p + 2) + 1.

Use the associative property to write an equivalent expression.
A) p = 2 + 1
B) p + (2 + 1)
C) 2p + 1
D) p(2 + 1)