Which of the following statements is true? A. STIs are a major cause of infertility in women. B. Regions where homosexuality is openly discouraged tend to have lower rates of STIs. C. Syphilis and hepatitis B are the most common STIs in the United States. D. All of these are correct.

A. STIs are a major cause of infertility in women.

Explanation:

The chlamydia and gonorrhea are the two sexually transmitted diseases. The effects of these two diseases are the same but no symptoms can be found thus these diseases remain undetected for long.

These diseases causes fallopian tube infection, and infection of the uterus. The scarring of the fallopian tube can produce risk in pregnancy and can cause infertility in females.