Which of the Following Statements Pertaining to Genome Organization Is

Which of the following statements pertaining to genome organization is true?

A) The fibroin gene undergoes DNA amplification within moth silk gland cells to enable the synthesis of up to 109 silk fibroin proteins per cell.
B) Up to 98% of the human genome encodes proteins and structural RNA's.
C) Histone genes are tandemly repeated and localized in nucleoli.
D) Amplification of protein- encoding genes is commonly seen during amphibian oogenesis, when enormous stores of protein are needed.
E) Eukaryotic chromosomes each consist of a single linear DNA molecule.