Which pathogen causes genital warts,a type of $STD$ in humans?

$STDs$ can be considered as self-invited diseases. Comment.

Diseases which are transmitted through sexual intercourse are collectively called:

$A$ sexually transmitted disease, symptomatized by the development of ulcers on the genitals, is caused by the infection of

Select the correct option for the early symptoms of Sexually Transmitted Diseases (STDs).
$I -$ Itching in the genital area
$II -$ Abortion
$III -$ Fluid discharge in the genital area
$IV -$ Pelvic Inflammatory Diseases $(PID)$
$V -$ Slight pain in the genital area
$VI -$ Swelling in the genital area

The $V.D.R.L.$ test is performed for which of the following?