1. **State the problem:** Al earns a commission of 0.0125 (or 1.25%) on every dollar of the sales price. We need to find his commission on a $150,000 house. 2. **Formula:** Commission = Commission rate × Sales price 3. **Calculate:** $$\text{Commission} = 0.0125 \times 150,000$$ 4. **Multiply:** $$0.0125 \times 150,000 = 1,875$$ 5. **Interpretation:** Al's commission on the $150,000 house is $1,875. 6. **Answer choice:** C. $1,875.00