A student assembles a circuit, which she names circuit 1. She measures the current $I_1$ and then determines the resistance $R_1$ of the circuit. Next, she adds an identical resistor in parallel with the first resistor. She names this circuit 2. She measures the current $I_2$ and then determines the total resistance $R_2$ of this circuit. Which row gives the correct comparison of the two currents and the two resistances in the circuits?
- A$I_2$ greater than $I_1$, $R_2$ greater than $R_1$
- B$I_2$ greater than $I_1$, $R_2$ less than $R_1$
- C$I_2$ less than $I_1$, $R_2$ greater than $R_1$
- D$I_2$ less than $I_1$, $R_2$ less than $R_1$