New York City is renowned for its vibrant street art that adorns many of its neighborhoods. One of the most iconic locations for street art is the East Village, particularly along Avenue A. In the 1980s, artists began painting large, colorful murals on the sides of buildings, depicting various themes from social issues to abstract art. Over time, these murals have evolved, with new artists adding their own works to the mix. Consequently, Avenue A has transformed into a dynamic outdoor gallery, reflecting the diverse and ever-changing artistic culture of New York City. Which choice best states the main purpose of the text?