The author is most concerned with the possibility that after a few decades__________．

The author is most concerned with the possibility that after a few decades__________． 查看材料

A.the supply of investment capital is likely to decrease considerably

B.consumers’appetite for new products or services will lessen tremendously

C.fortunes will be made and lost many times over

D.most human interactions can be easily monitored

请帮忙给出正确答案和分析，谢谢！