It can be inferred from paragraph 6 that compared with standard practices for remediation

It can be inferred from paragraph 6 that compared with standard practices for remediation of contaminated soils, phytoremediation

A．does not allow for the use of the removed minerals for industrial purposes

B．can be faster to implement

C．is equally friendly to the environment

D．is less suitable for soils that need to be used within a short period of time

请帮忙给出正确答案和分析，谢谢！