Choose the number sentence that illustrates the distributive property of multiplication over addition.
A.
5 × (4 + 9) = (5 × 4) + (5 × 9)
B.
5 × (4 + 9) = (5 × 4) + 9
C.
5 × (4 + 9) = (5 + 4) × (5 + 9)