Taiga is the biome characterized by conifers.
I'll say Graph C cause both Graph A and Graph C look slighty different but both are close to being the same but in Graph C it shows different Figures Both don't match each other hence Population of birds in Graph C are specialized in different types of food.
B, if he didn't end up taking all of the antibiotics that will happen
Option A, B, D are only applicable for steroid hormones ( hydrophobic)
So the answer is C