What is the man doing

A．They are planning a picnic for the department.
B．They are having a picnic organized by the department.
C．They are discussing how to escape from the sun.
D．They are drinking and talking about the weather.

A．rubbish is a potential remedy for the shortage of raw materials
B．local governments in the U. S. can expect big profits from recycling
C．recycling is to be recommended both economically and environmentally
D．landfills will still be widely used for waste disposal