A. (p/bd) [1 + (12ey. y/d²) + (12ex. x/d²)](Correct)
B. p [1 + (6ey. y/b) + (6ex. x/ b)]
C. (p/bd) [1 + (6ey. y/d) + (6ex. x/b)]
D. (p/bd) [1 + (ey. y/d) + ( ex. x/d)]
B. p [1 + (6ey. y/b) + (6ex. x/ b)]
C. (p/bd) [1 + (6ey. y/d) + (6ex. x/b)]
D. (p/bd) [1 + (ey. y/d) + ( ex. x/d)]