複選題23. For the following statements related to epigenetics, which is (are) CORRECT? (A) Both DNA and histone methylation are considered epigenetic modifications. (B) Decreased target gene expression via DNA methylation is due to the target DNA breakage. (C) Histone acetylation generally results in degradation of histones. (D) The function of non-coding RNAs (ncRNAs) in epigenetics is to directly alter DNA sequences. (E) Histone methylation can result in either target gene activation or silencing, depending on the specific methylation site on the histone.