The x and y coordinates of the particle at any time are $$x = 5t - 2t^2$$ and y = 10t respectively, where x and y are in meters and t in seconds. The acceleration of the particle at t = 2 s is

A

$$-4 m/s^2$$

B

$$-8 m/s^2$$

C

0

D

$$5 m/s^2$$