True about primary chancre:

Ans. d. AllPRIMARY SYPHILISPrimary (or hard) chancre: Single painless indurated ulcer. Most common sites are penis (in males), Cervix or labia (In female).Regional (Usually inguinal) lymphadenopathy: Painless firm, non-suppurative and often bilateral.If syphilis acquired by non-venereal mode:If transmitted by direct contact - the primary chancre is extra genital, usually on the fingers.If transmitted by blood transfusion - the primary chancre doesn't occur.