Answer:
Option D
Explanation:
From the above statement, it is clear that maria saw an emergency vehicle racing down the street with sirens blaring.
All the Options above explains what somebody is staying concerning what maria saw, which was an emergency vehicle racing down the street with sirens. The best way to modifier the scenario is first stating what maria saw, which was "An emergency vehicle", what happened to the emergency vehicle, "It was racing down the street with sirens blaring".
So therefore, the option that best fits my explanation above is Option D
" Racing down the street , maria saw an emergency vehicle with sirens blaring".
All other options keeps repeating the scenario of racing down the street, which is not grammatically correct, only option D explains perfecting without repetition what maria saw racing down the street.