Which of the following statement is not correct about syphilis?

• A. Primary stage of disease shows the appearance of chancre on genitalia and lips.
• B. In quaternary stage of disease, thick pus is discharged from urinogenital organ.
• C. Secondary stage of disease shows the appearance of multiple lesions on mucous membrane of lips, mouth and genitalia.
• D. Tertiary stage of disease shows the appearance of gumma on the skin.