STDs are reported to be very high among persons in the age group of ..... years.

Find out sexually transmitted diseases among the given below $I. AIDS II. Syphilis$ $III. Gonorrhea$ $IV. Malaria$ $V. Hepatitis-B$ $VI. TB$

All reproductive tract infections $\rm {RTIs}$, are $\rm {STDs}$, but all $\rm {STDs}$ are not $\rm {RTIs}$. Justify with example.

Chancroid is a sexually transmitted disease caused by:

Select the option including all sexpally transmitted diseases.