Tom Has Entered into a Contract to Purchase a Home

Tom has entered into a contract to purchase a home from Fred.As the closing date approaches,Tom and Fred get into a dispute over whether or not the home theater system that Fred had installed two years earlier is included in the sale.The contract that Tom and Fred signed did not mention the home theater system.Which of the following is true?

A) The home theater system is not included in the sale, because the contract did not mention the home theater system in any way.
B) The home theater system is included in the sale, because it is within the walls of the house.
C) Whether the home theater system is included in the sale depends on whether it can be removed without causing significant damage to the house.
D) The home theater system is included in the sale, but only if the property is in compliance with all applicable zoning regulations.
E) The home theater system is not included in the sale, because it was personal property when Fred purchased it from the electronics store.