Read the following text and answer the following questions on the basis of the same:
The term sexually transmitted disease (STD) is applied to the group of diseases that spread by sexual contact. Some infections like hepatitis-B and HIV can spread by sharing injection needles, surgical instruments etc. Except for hepatitis B, HIV infections, genital herpes, most of the STDs are completely curable if detected early and treated properly. Though all persons are vulnerable to these infections, their incidences are high in the age group of 15-24 years.
Syphilis is an infectious disease caused by Treponema pallidum with 3 stages :

Options

A. a-I, b-II, c-III
B. a-I, b-III, c-II
C. a-III, b-I, c-II
D. a-II, b-III, c-I

Answer

C

Explanation

A person with first stage of syphilis generally has a sore or sores at the original site of infection. These sores usually occur on or around the genitals. These sores are usually (but not always) firm, round, and painless. Symptoms of secondary syphilis include skin rash, swollen lymph nodes, and fever. Tertiary: syphilis is associated with severe medical problems. It can affect the heart, brain, and other organs of the body.