What is the best title for the passage

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

A．against future Changes in our life style
B．positive about our present situation
C．serious and hopeful in seeing a shift from the emphasis on economical progress to a better awareness of the nature
D．sorry for a decrease in defense expenditure