Which of the Following Chemical or Structural Characteristics of RNA

Which of the following chemical or structural characteristics of RNA is different from those of DNA? (Select all that apply.)

A) The RNA sugar is ribose instead of deoxyribose.
B) RNA is usually a single-stranded molecule instead of a hydrogen-bonded double strand like DNA.
C) The bases in RNA include uracil instead of thymine.
D) RNA molecules are generally shorter in length than those of DNA macromolecules.
E) The 2' carbon of ribose has an H, unlike the OH in that position of deoxyribose.