The key itself is personal property, or personalty, making B correct. It is a movable object that has not been physically annexed to the land or building in a manner that would transform it into a fixture.
Realty encompasses the land, improvements, and items legally treated as part of the real estate. The storage locker structure and permanently installed locking mechanism might form part of the real property or common-area arrangement depending on the condominium documents, but the removable key is plainly a movable chattel.
A trade fixture is equipment or an installation attached by a commercial tenant for purposes of conducting a business and is generally governed by special removal rules. A storage-locker key has no such character. Emblements concern certain annual crops produced by cultivation and are also unrelated.
This question tests the broader exam distinction between real and personal property. Salespersons should understand this distinction because sales agreements often identify personal property that will remain after closing, and disputes can arise over whether a particular object is a fixture automatically passing with the real estate or personalty that must be separately included.
Study Guide Reference: Property Ownership — real property, personal property and fixtures.
