An oil tank of height 6 m is half-filled with oil and the air above it exerts a pressure of 200 kPa on the upper surface. The density of oil varies according to the given relation:What will be the percentage error in the calculation of the pressure at the base of the tank if the density is taken to be a constant equal to 800?

• A. 0.01
• B. 0.05
• C. 0.10
• D. 0.15