<span>The answer is letter d. a person should seek medical treatment the first moment he or she suspects having an STI. The best time to be treated for STI is to be treated immediately. Do not neglect any symptoms of STI, because it may worsen and can cause serious illness. but the best treatment for obtaining STI is prevention. </span>
Answer:
The source is current, because you shouldn't rely on information from 50 years ago.
A. T-cell. This activates to fight off the virus or bacteria in your body.
The answer is cardio respiratory endurance :)