Answer: To precess or providing or obtaning the food necessary for health and growth.
Food or nourishment
That would be a practical exercise. Practical means the actual doing or use of something rather than with theory and ideas. So it would apply to real life situations.
Hope this helps!
C is your answer im pretty sure
An effective way to improve your ability to communicate is to A) be aware of when you are the receiver and when you are the sender.
It is very important to distinguish between these two things so as to achieve a good communication with somebody.