A paper bag has seven colored marbles. The marbles are pink, red, green, blue, purple, yellow, and orange. List the sample space when choosing one marble.

S = {1, 2, 3, 4, 5, 6}
S = {purple, pink, red, blue, green, orange, yellow}
S = (g, r, b, y, o, p}
S = (green, blue, yellow, orange, purple, red}