4.a
5.d
those are the only ones i'm 100% sure about.
From the description of the food that the doctor is advising Natalia to start consuming, it is clear that she is suffering from (C) Vitamin D deficiency.
Someone with a vitamin D deficiency would be at risk of rickets, an illness where someone will have skeletal deformities due to soft bones. Increased risk of death due to cardiovascular disease and cancer is also associated with someone who has a vitamin D deficiency.
Pancreas is your answer
Plus, it also breaks down fats :)
Knowing how do the activity over time
Well I would think d, all of them.
You can eat medicine you don’t need
You can drink nail polish remover
You can set your house of fire with a stove
