Solve the Problem $\mathrm { p } ( \mathrm { x } )$

Multiple Choice

Solve the problem.
-If the price charged for a candy bar is $\mathrm { p } ( \mathrm { x } )$ cents, then $\mathrm { x }$ thousand candy bars will be sold in a certain city, where $\mathrm { p } ( \mathrm { x } ) = 24 - \frac { \mathrm { x } } { 22 }$ . How many candy bars must be sold to maximize revenue?

A) 264 thousand candy bars
B) 528 candy bars
C) 264 candy bars
D) 528 thousand candy bars