Please answer both questions only answer thanks

Which of the following relationship between chromatin organization and the modification of histones is true? A. histone H3 within heterochromatin lacks an N-terminal tail. B. histone H2B within euchromatin is methylated. C. histones within heterochromatin maintain acetylations. D. histones within euchromatin lack methylation modifications. The working model for the formation of nucleosomes during DNA replication includes. A. an equimolar mix of old and new nucleosomes combine following DNA replication. B. the use of new histones exclusively in nucleosomes containing daughter DNA strands. C. reassembly using only original nucleosomes containing daughter DNA strands. D. none of the above.