Choose the number sentence that shows the distributive property of multiplication over addition.
A.
3 × (4 + 5) = (3 × 4) + (3 × 5)
B.
3 × (4 + 5) = (3 + 4) × (3 + 5)
C.
3 × (4 + 5) = (3 × 4) + 5