Plants are affected by an array of pathogens.Which of the following is a likely plant defence/response against disease?

A)cells near the point of infection destroying themselves to prevent the spread of the infection
B)production of chemicals that repel pathogens
C)transcriptional level recognition followed by production of stress proteins
D)thickening the cuticle so that pathogens have trouble penetrating the tissues
E)stopping all xylem and phloem movement within infected tissues