Answer:
The answer is D. "Before anyone could protest, the kids marched into the bustling Italian streets."
Step-by-step explanation:
To answer this question, you need to consider the characteristics usually associated to downtown: busy, crowded, things are close by, etc.
Then, lets consider the word walkable. It means where you can walk.In the option given here, only D, evokes the two concepts just discussed:
- The word marched is a synonym - mean the same thing - then walk.
- The word bustling is another adjective for busy or crowded.