Explanation

To find the speed of the car, we need to divide the distance traveled (700 km) by the time taken (3 hours 30 minutes).

First, let's convert the time from hours and minutes to just hours:

3 hours 30 minutes = 3.5 hours (converting 30 minutes to 0.5 hours)

Now, let's calculate the speed:

Speed = Distance ÷ Time = 700 km ÷ 3.5 hours = 200 km/h

So, the correct answer is:

200 km/h