I think it’s B, if it’s not b then it’s A
D. All of the above
Due to certain smells and circumstances, asthma can react whilst running, and smelling stuffy smells.
The function of a protein is determined by its shape. Proteins are composed of polypeptides in which a sequence of amino acids connected through peptide bonds. This sequence is referred to as a proteins primary structure. The shape of each protein molecule determines its function in a cell.
I don't know if this will help but I hope it dose.