This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
Soft chancre is a feature of- 
Select and explain. 
A. Syphilis, B. H. Ducreyi, C. Gonococcus, D. LGV
B: H. Ducreyi
Answer: B: H. Ducreyi 
Explanation: Ans. is 'b' i.e., H. DucreyiRemember* Soft sore (soft chancre) - Chancroid (ulcer caused by H. ducreyi).* Hard sore (Hard chancre) - Ulcer of primary syphilis (caused by T. pallidum)