Explanation:

Correct Answer is (d).From the given sentence, it is very clear that the pedestrians do not have enough space left on the roads to move because there are motorists everywhere on the roads.
Among the given options, option A is not correct since encircled cannot be placed in the blank.
Option B is also not correct because accustomed cannot fit in the context in any manner. Same can be said about option C where figures is not a fit word for the first blank. Only D is the option where both the words fit perfectly in the given context.
This makes option D the correct choice among the given options.