A Series LR Circuit Consists of a 2

A series LR circuit consists of a 2.0-H inductor with negligible internal resistance,a 100-ohm resistor,an open switch,and a 9.0-V ideal power source.After the switch is closed,what is the maximum power delivered by the power supply?

A) 0.40 W
B) 81 W
C) 0.090 W
D) 8.1 W
E) 0.81 W