Which of the following is the example of sex linked disease : -

Sex-linked diseases are caused by genes present on the sex chromosomes, usually the X chromosome.
Colour blindness (red-green) is caused by a recessive gene on the X chromosome, so it is a sex-linked (X-linked recessive) disorder, much more common in males.
AIDS (caused by HIV), syphilis (Treponema) and gonorrhoea (Neisseria) are sexually transmitted infections caused by microbes, not genetic diseases.
So colour blindness is an example of a sex-linked disease.