20. The phrase mixed uses (highlighted portion) most likely refers to:
Your Answer is
Correct Answer is J
Explanation
The general idea of the original text is that zoning laws make it impossible to create a walkable environment by prohibiting mixed use of roads and authorizing a large number of parking lots and unreasonable facilities. It can be deduced from this that mixed uses refer to the development and use of multiple functions in the same environment. Item J is in line with the meaning of the title.