If you want to sell a car about $ 80,000, you' d better set the price at ______.

A．reducing cost is the surest way to increase profits
B．profits depend on how fast goods are moving
C．fair markup promise the greatest profits
D．lower markup brings reasonable profits

A．the buyer search from place to place for desired object
B．the government selects the best items
C．the government transacts with an individual
D．the sellers compete with each other for the bid