Chloroplasts are cell organelles only found in plant cells. So that automatically gets rid of C.
Since they are found in plant cells, they have the special job of concerting light energy into chemical energy.
It has been awhile since this unit, but I’m pretty sure that the chemical energy is turned into the glucose, but I’m not 100% sure.
The answer is B.
An enzyme may react with several substrate chemicals simultaneously.
True
Evolution of new diseases I think is the answer you're looking for.