Why Do Positively Charged Amino Acids Appear More Often Than

Why do positively charged amino acids appear more often than usual in histone proteins?

A) Because histones have a higher molecular mass, which improves DNA compaction
B) Because histones are strongly attracted to the positively charged phosphate backbone of DNA
C) Because histones and DNA have opposite charges, which improves the compaction of DNA into nucleosomes
D) Because histones and DNA have the same charge, which improves the compaction of DNA into nucleosomes