问题详情

What does the author mean by saying "be back to square one"(Paragraph Four)？

A．All the work that has been done will be in vain.

B．Square parking lot will be perfect for the area.

C．Waterproof canvas is the perfect material for the booths.

D．The produce looked better while displayed on the streets.

请帮忙给出正确答案和分析，谢谢！