In order to solve the environmental problem the government ___________________ (做出了很大的努力) though most of the locals are still unaware of this.

A．they haven’’t done anything against moral values
B．the court found they were not guilty of cheating
C．the press argued that Ingram may have tried to commit fraud, but the producer of the show should be more responsible for the misdeeds
D．they haven’’t profited from the whole business