SAT Math Practice Question

Alma bought a laptop computer at a store that gave a 20 percent discount off its original price. The total amount she paid to the cashier was $p$ dollars, including an 8 percent sales tax on the discounted price. Which of the following represents the original price of the computer in terms of $p$ ?

1. A.$0.88 p$
2. B.$\frac{p}{0.88}$
3. C.$(0.8)(1.08) p$
4. D.$\frac{p}{(0.8)(1.08)}$