3-17B5 B
In polar coordinates, what is the impedance of a network comprised of a 400-ohm-reactance inductor in parallel with a 300-ohm resistor?
A. 240 ohms, /-36.9 degrees 
B. 240 ohms, /36.9 degrees 
C. 500 ohms, /53.1 degrees
D. 500 ohms, /-53.1 degrees
