If ZS = RS+jXS, ZL=RL+jXL, then if RL is fixed, the condition for maximum power to be transferred is?

If ZS = RS+jXS, ZL=RL+jXL, then if RL is fixed, the condition for maxi

1.	If ZS = RS+jXS, ZL=RL+jXL, then if RL is fixed, the condition for maximum power to be transferred is?
A.	X<sub>S</sub>=X<sub>L</sub>
B.	X<sub>S</sub>=-X<sub>L</sub>
C.	X<sub>S</sub>+X<sub>L</sub>=0
D.	None of the mentioned
Answer» C. X<sub>S</sub>+X<sub>L</sub>=0