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You have a DC circuit hooked up to a 5.0V battery. A single resistor (R1=20 Ohms) is hooked in series with a pair of parallel resistors (R2=40 Ohms, R3=30 Ohms). What is the current flowing through the 30 Ohm resistor?

A. 76.7 mA

B. 135 mA

C. 58.3 mA

D. 500 mA

E. 315 mA

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