People aged 15 to 24 account for of all people infected by stis.
a. more than a quarter
b. less than half
c. more than half
d. less than a quarter

Answer – C. more than half. A sexually transmitted infection (STI) is an infection that is usually spread by sexual contact. Some of these STIs like gonorrhea and chlamydia contaminate your sexual and reproductive organs. Others like HIV, hepatitis B, and syphilis can lead to body infections.

Answer charlie should immediately start an exercise and diet program because all his test indicate that he is extremely obese;

I'd say replacing that habit (of smoking) with a more healthy habit, like going to the gym. c;