HELP PLEASEEEE
Twin Labrador Retriever puppies were born from a black mother and a golden father. One puppy was born black and the other was born golden. These two puppies have different traits because their DNA has___.
A. different amounts of deoxyribose sugars in their DNA molecules
B. different arrangements of nucleotides
C. different amounts of thymine nitrogen base
D. different numbers of proteins found within their cells