Answer:
C). Intention of the parties.
Explanation:
As per the question, the most dominant rule would include the 'intention of the parties' that would assist in determining if an object has turned a fixture or not. An item is usually attached to a property only with the permission/intention of the party and their agreement to make it permanent as then only it is considered as a fixture. The other options would play a subservient role in converting a personal property into a fixture while the intent plays the primary role. Therefore, option C is the correct answer.