<prompt> A 30-year-old male patient has a large, spreading and exuberant ulcer with bright red granulation tissue over the glans penis. There was no lymphadenopathy. The most likely causative organism isTreponema pallidumHerpes simplex virus type 1Herpes simplex virus type 2Calymmatobacterium granulomatis  <response>: Two important clues in this question are :-Exuberant granulation tissue Diagnosis is granuloma venerumNo lymphadenopathy Diagnosis is granuloma venerum 