Which equation demonstrates the distributive property? A) 7 (1 + 6) = 7 (6 + 1) B) (7 × 1) × 6 = 7 × (1 × 6) C) (7 × 1) × 6 = 7 × (6 × 1) D) 7 (1 + 6) = 7 × 1 + 7 × 6