A．Consumers are adequately informed about the environmental impact of products they buy.
B．Consumers are being confused and misled by the huge amount of environmental claims of household products.
C．Consumers protest that many household products make false environmental claims.
D．Governments should take measures to test the environmental claims made by products.

A．They were going to the mall.
B．They were riding an elevator.
C．They were thinking about the stairs.
D．They were carrying a heavy box upstairs.