Answer:
A variety of peroxide compounds, including carbamide peroxide, hydrogen peroxide, sodium perborate and calcium peroxide, have been used as active ingredients for bleaching materials
Explanation:
The answer is muscle endurance
I think it might be C if not then B but I would go with C
Sorry if I got it wrong
Usually they start of happy as the person begins to change later on in the relationship
But I am not sure but I think the answer is
C. Happy