An Economic Explanation for Why Rock Concert Tickets Sell at Prices

An economic explanation for why rock concert tickets sell at prices below the market equilibrium is that musicians

A) are not greedy.
B) want to reward their loyal fans.
C) expect that younger people,who will spend more on merchandise at the concert,are more willing to wait in long lines to buy tickets than adults.
D) expect that those who are more willing to wait in long lines to buy tickets will make a more receptive audience than those who are willing to pay a higher price.