Which of the following is the best way to ensure you are receiving the best possible nutrition?
a. eating whole grains every morning and evening
b. reducing the amount of salt and sugar in foods
c. eating a wide variety of foods
d. using olive oil instead of butter for cooking

Let's look at your answer choices...

A- You don't want to limit yourself to just one food group. Eating fruits and dairy are also beneficial. 

B- This is a good way, but it doesn't cover other things like making sure you get enough of each food group.

C- This is true, because you'll get the nutrition from each food group like dairy, grains, fruits, meats

D- Again, this is good, and helpful, but it's not the best answer. Olive oil is also fatty.

So, in my opinion, it would be 
"C. Eating a wide variety of foods."

Hope this helps!

Ibelieve the correct answer is  stratum  lucidum.