The correct option is
D DNA and RNA in prokaryotes
Genophore refers to chromosome equivalent in prokaryotes, viruses and semi autonomous organelles that serves as heredity material. It consists of nucleic acids, DNA or RNA but lack any histone proteins. This makes option B correct answer.
Option C is incorrect as genophores lack proteins.
Option A and B are incorrect as genophore can have any of nucleic acid, be it DNA or RNA.
Therefore, the correct answer is option B.