Given below are certain statements regarding plant-pathogen interactions :

(A)    The pattern recognition receptor (PRR), upon perceiving pathogen or microbe-associated patterns (PAPMs/MAMPs), activates plant defenses resulting in pattern triggered immunity (PTI).
(B)    AcrPto is a resistance gene in tomato that acts against pathogenic attack by the bacterium Pseudomonas syringae pv. tomato.
(C)    The effector molecules produced by pathogen is recognized by resistance (R) gene present in plants resulting into a defense strategy known as effector triggered immunity (ETI).
(D)    Defense mechanisms triggered in plants during PTI are usually stronger than those during ETI.
 Which one of the following combinations of above statements is correct ?