Is ______ true that the scientist will give us a lecture next week

A．either pay cash or write checks
B．are allowed to use credit cards
C．pay cash, write checks or use credit cards
D．neither pay cash nor use credit cards

A．can get what they want and need when they have no money
B．can get things at a store they cannot afford at one time
C．don’t need to carry a lot of money
D．B and C