A circuit has a resistor with a resistance of 5 ohms and a current of 3 amperes flowing through it. What are the voltage across the resistor and the power dissipated by the resistor?
A) 10 volts, 30 watts.
B) 15 volts, 45 watts.
C) 20 volts, 60 watts.
D) 25 volts, 75 watts.