D. I don't know if that is what your teacher will agree with but in my own personal research I have found that to be very effective.
<span>Anaerobic exercise is short-lasting, high-intensity activity, where your body's demand for oxygen exceeds the oxygen supply available. </span>
A game wear you defend something from something [aliens].
Infection is not a controllable health factor. The correct option among all the options given in the question is option "b". The other options given in the question is definitely controllable by an individual. Infection can get into a person without his or her knowledge. This infection can be fatal under certain circumstances and so infection always needs to be controlled.
