If x is a decision variable of LPP and unrestricted in sign then this variable can be converted into x = x’ – x’’ so as to solve the LPP by simplex method, where:

If x is a decision variable of LPP and unrestricted in sign then this

1.	If x is a decision variable of LPP and unrestricted in sign then this variable can be converted into x = x’ – x’’ so as to solve the LPP by simplex method, where:
A.	x’ ≤ 0 and x’’ ≥ 0
B.	x’ ≥ 0 and x’’ ≤ 0
C.	x’ and x’’ ≤ 0
D.	x’ and x’’ ≥ 0
Answer» E.