Airplanes A, B, C, D, and E have from 4 to 10 first class seats. Airplane A has the fewest number of first class seats that any airplane offers. Airplane B and Airplane C have the same number of first class seats. Airplane C has twice as many first class seats as Airplane D. Airplane E has fewer first class seats than Airplane B. Which statement must be true? Airplane D has five first class seats. Airplane D has more first class seats than Airplane A. Airplane E has fewer than six first class seats. Airplane A has four first class seats. Airplane B has fewer first class seats than Airplane D.
