An open rectangular box of base 2m $$\times$$ 2m contains a liquid of specific gravity 0.80 up to a height of 2.5 m. If the box is imparted vertically upward acceleration of 4.9m/s$$^2$$, what will be the pressure on the base of the tank?

A

9.81 kPa

B

19.62 kPa

C

36.80 kPa

D

29.40 kPa