You are asked to verify the statement “for a constant current, there is a direct relationship between voltage and resistance”. Which of the following calculations could you perform to complete this task?

A
An initial voltage of 25.0 V creates a current of 1.25 A. The voltage is decreased to 12.5 V to create a current of 0.625 A.
B
An initial resistance of 30 Ω allows a current of 1.25 A to flow. When the resistance is doubled, the current is 0.625 A.
C
An initial current of 2.6 A is created when 62.5 V occurs. The current is then doubled to 5.2 A and the voltage doubles to 125 V.
D
An initial resistance of 50 Ω allows a current of 2.6 A. When the resistance is doubled, the current is 2.6 A.