The image shows a breakfast. Which essential ingredients of a nutritious breakfast are
missing?

1- whole grains and protein
2- protein and carbohydrates
3- whole grains and carbohydrates
4- protein and healthy vegetables

It's A. whole grains and protein

Explanation:

on Edge

However I disagree. I think it should be D. Protein is part of the answer in A. and I'm pretty sure the blueberries, (in picture) are a fruit not a vegetable.  

But A. is the answer the software looking for.

not concrete, existing in thought or as an idea but not having a physical or concrete existence

there mad at that place