The term hypersensitive response is coined by

Answer: Option D

The term hypersensitive response is coined by Stakman.
Hypersensitive response (HR) is a mechanism used by plants to prevent the spread of infection by microbial pathogens. HR is characterized by the rapid death of cells in the local region surrounding infection and it serves to restrict the growth and spread of pathogens to other parts of the plant.
HR is commonly thought of as an effective defence strategy against biotrophic plant pathogens, which require living tissue to gain nutrients.