Which of the following statements is CORRECT about the area that spans the length of the W

Which of the following statements is CORRECT about the area that spans the length of the West Collet Canal from Cemetery Road to Dean Street？

A．It used to be the messiest and poorest area along the canal.

B．It had the largest people flow of all the canal-side streets.

C．It was changed to a very large extent, compared to its past.

D．It was the most densely-populated area along the canal.

请帮忙给出正确答案和分析，谢谢！