a.) Some <span>bacterial </span><span>infections could be treated with antibiotics, while </span><span>viral </span>infections can't,
<span> b.) </span><span>Viruses </span><span>reproduce by replacing a cell's genetic information with its own, </span><span>bacteria </span>reproduces by binary fission,
<span> c.) </span><span>Bacteria </span><span>are considered a living organism, </span><span>viruses </span>aren't considered a living organism,
<span> d.) Most </span><span>viral </span><span>infections are harmful, most </span><span>bacterial </span>infections aren't harmful,
<span> e.) </span><span>Bacteria </span><span>has both DNA and RNA, while </span><span>viruses </span><span>have either DNA </span>or<span> RNA, but </span><span>NOT </span><span>both.</span>
I would say #2, because it is very important to eat a well balanced diet while also working out and staying physically active to stay healthy! However, the question asks, "Which of the following is a guideline for practicing good nutrition." That being said I would say #4 "Consume foods with a variety of nutrients and adequate portions.
Hope this helps!