Which one of the following statements is correct regarding Sexually Transmitted Diseases (STD)? (1) The chances of a 5-year boy contacting a STD are very little. (2) A person may contact syphilis by sharing milk with the one who is already suffering from the same disease. (3) Haemophilia is one of the STD. (4) Genital herpes and sickle-cell anaemia are both STD.

Question: 

Which one of the following statements is correct regarding Sexually Transmitted Diseases (STD)? (1) The chances of a 5-year boy contacting a STD are very little. 

(2) A person may contact syphilis by sharing milk with the one who is already suffering from the same disease. 

(3) Haemophilia is one of the STD. 

(4) Genital herpes and sickle-cell anaemia are both STD.

Answer: option (1) "The chances of a 5-years boy contracting a STD are very little"

Explanation:

Syphilis is caused by bacterium Treponema pallidum. It is a sexually transmitted disease (STD) which is transmitted through sexual intercourse with infected person. Haemophilia is an X-linked genetic disorder of blood, It is not transmitted via any sexual practice. Genital herpes is an STD while sickle-cell anaemia is an autosomal hereditary disorder. The chances of a 5 years old boy contacting an STD are very rare since he is unlikely to have sex at this age. So, the correct answer is 'The chances of a 5-years boy contracting a STD are very rare'. 

Hence, option (1) "The chances of a 5-years boy contracting a STD are very little" is the correct answer.