The answer is C. Hope that helped!
B,c,d because it makes sense
I think its the letter c because its 1 nitrogyn 2 oxengyn
Alaska, Delaware, Montana, North Dakota, South Dakota, Vermont, they have three each
<span>This was Hector Camacho. He held three different weight-class championships throughout his 30-year career, from the years 1983 to 1992. He had also won an number of amateur tournaments in the New York area before reaching the pinnacles of his sport in the 1980s.</span>