You have noticed that your next-door neighbor Mary always works in the garden and her husband Jamal always washes the car

You have noticed that your next-door neighbor Mary always works in the garden and her husband Jamal always washes the car. Based on this observation, you conclude that
A. Mary has an absolute advantage in gardening.
B. Jamal has a comparative advantage in washing the car.
C. Mary does not understand the principle of low-hanging-fruit.
D. Jamal experiences increasing opportunity costs when he gardens, but not when he washes the car.