There has been an encouraging ______ to the appeal for contribution to the Famine Relief Fund.

A．Technological Achievements
B．Environmental Pollution
C．Economical Progress and Better Awareness of the Nature
D．The Future is Purchased by the Present

A．earthmanship awareness ignores economic progress
B．our attitudes and our habits must be improved first before we can do anything to reduce environmental pollution
C．automobiles are helpful in transportation
D．it is essential to develop the present rather than the future