The correct option is A A- (V), B- (IV), C- (II), D- (III)
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum.
Mycobacterium bovis is a slow growing, aerobic bacteria that is the causative agent of tuberculosis in cattle.
Crown gall is a disease in plants caused by the bacterium Agrobacterium tumefaciens.
Diphtheria is a serious bacterial infection that is caused by Corneybacterium diphtheriae.
Thus, the correct answer is option (A).