A Car Travels in a Flat Circle of Radius R $\degree$

A car travels in a flat circle of radius R.At a certain instant the velocity of the car is 24 m/s west,and the total acceleration of the car is 2.5 m/s² 53 $\degree$ north of west.Which of the following is correct?

A) R = 0.29 km,and the car's speed is increasing.
B) R = 0.23 km,and the car's speed is decreasing.
C) R = 0.23 km,and the car's speed is increasing.
D) R = 0.29 km,and the car's speed is decreasing.
E) R = 0.29 km,and the car's speed is constant.