Elimination approach: Ribose is the five-carbon sugar found in RNA, not DNA. Arabinose is a plant-derived sugar used in some polysaccharides, unrelated to nucleic acid backbones. Glucose is a six-carbon sugar used mainly for energy metabolism, not for building nucleotides.
DNA's backbone sugar is a five-carbon sugar that is missing a hydroxyl group at the 2' carbon compared to ribose, which is exactly why it is named deoxyribose ("deoxy" = without one oxygen). This structural difference from ribose is also what gives DNA greater chemical stability than RNA.