A local city government has awarded a contract to sequentially build five new elementary schools over the next $10$ years. The price for each school has been spelled out in the contract, but at the beginning of each year the city can cancel the order for the remaining schools. The city government is concerned that if the population of the town does not grow as expected it may not need all of the schools. What type of financial option does the option to cancel the order resemble?

Selling a call option on the value of the new schools

Selling a put option on the value of the new schools

Owning a call option on the value of the new schools