【单选题】In the DNA supercoil, which option is right.
A.
The nucleosome is composed by RNA and H1, H2A, H2B, H3 and H4
B.
The nucleosome is composed by DNA and non-histone proteins
C.
The histone contains H1, H2A, H2B, H3, and H4
D.
All of the above are wrong