For the truss and loading shown, determine the average normal stress in member X, knowing that the cross-sectional area of that member is Y and the load is Z.

a) X = 0, Y = 1, Z = 2
b) X = 1, Y = 2, Z = 3
c) X = 2, Y = 3, Z = 4
d) X = 3, Y = 4, Z = 5