The steps shown in the solution process involve multiplying both sides of the inequality \( \frac{4}{3}d \geq -20 \) by \( 3/4 \) (notice the fraction written as \( 34(43) \) and \( -20(34) \) signifies multiplying by \( 3/4 \)), which justifies using the Multiplication Property of Inequality.
The correct response is:
Multiplication Property of Inequality