I would definetly say that to be most successful in a new exercise program, would be making a flexible schedule for physical activity (B). I know in personal experience, that making a list or daily planner of the exercises you will conduct, can help you be more motivated and active to do your exercising.
Decreasing iron-rich foods
Answer: Leukocyte goes with B.
Erythrocyte goes with H.
Platelet goes with A.
Basophils go with G.
Neutrophils go with .
Eosinophils go with D.
Explanation:
I hope it helps ^^