We can infer from the second and third paragraphs that in the 21st century______.A．all inf

We can infer from the second and third paragraphs that in the 21st century______.

A．all information is free

B．digital economy has been the most important

C．the real "free" commodity finally shows up

D．a free cell phone does not exist any more

请帮忙给出正确答案和分析，谢谢！