C) the ribosomes synthesize proteins
<span>Neither. You need a nutritionist. Biochemist and food scientists could peripherally be involved by seeing that food is processed in such a way as to preserve the nutritional value of the food. (e.g., seeing that the vitamins are not degraded by processing) and contaminates and bacteria are not introduced.</span>
The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
