Mary Owns a Farm

Multiple Choice

Mary owns a farm.On the farm is a barn,a tractor,and some crops growing in the fields.Which of the following statements is not true regarding Mary's property?

A) All of Mary's property mentioned above is tangible.
B) The crops are real property until they are harvested,when they become personal property.
C) The tractor is a fixture.
D) The barn is real property,although at some point in the past the supplies used to build it were personal property.