The diagram represents a cell with internal resistance arranged in parallel with a fixed resistor and a variable resistor. The resistance of the variable resistor is reduced. What happens to the potential difference $V$ across the variable resistor and the current $I$ through the variable resistor?
- A$V$ decreases, $I$ decreases
- B$V$ decreases, $I$ increases
- C$V$ increases, $I$ decreases
- D$V$ increases, $I$ increases