Answer:
The correct answer is: because it benefits some consumers who are voters.
Step-by-step explanation:
A politician will be concerned about his votes. He accordingly will make policies to appease voters.
A price ceiling keeps price level from rising beyond a certain limit, thus consumers will be able to consume at lower prices.
Removal of price ceiling may hurt these consumers as they will need to pay higher prices.
These consumers are also voters and politician do not want them to be favored by them.
So, the politician will find it difficult to remove a binding price ceiling.