A Fungus Infection Occurs in the Leaves of a Plant

A fungus infection occurs in the leaves of a plant.This triggers a variety of immune responses,including the production of salicylic acid,which then travels to other parts of the plant.These parts of the plant are later resistant to infection by other fungi.The plant is showing the results of

A) specific immunity.
B) constitutive defenses.
C) hypersensitive response.
D) systemic acquired resistance.
E) gene-for-gene resistance.