Final answer:
Laura has 3 times as many black T-shirts as red T-shirts since dividing the number of black T-shirts (12) by the number of red T-shirts (4) gives us 3.
Step-by-step explanation:
Laura has 4 red T-shirts and 12 black T-shirts. To determine the relationship between the number of black T-shirts to red T-shirts, we need to compare the quantities. If we take the number of black T-shirts and divide it by the number of red T-shirts (12 ÷ 4), we get 3.
This means that Laura has 3 times as many black T-shirts as red T-shirts, making the statement (B) The number of black T-shirts Laura has is 3 times the number of red T-shirts the true one.