A.(p/bd) [1 + (12ey. y/d2) + (12ex. x/d2)]
B.(p/bd) [1 + (ey. y/d) + ( ex. x/d)]
C.(p/bd) [1 + (6ey. y/d) + (6ex. x/b)]
D.p [1 + (6ey. y/b) + (6ex. x/ b)]
Explanation: The correct answer is (p/bd) [1 + (12ey. y/d2) + (12ex. x/d2)].
Submitted by: Academy of Pakistan