Two resistors are in parallel. Resistor "A" carries twice the current of resistor "B," which means that:

The first crucial rule to remember is that components wired in parallel always share the exact same voltage across them. Because of this, any option suggesting the voltages across A and B are different is immediately incorrect. According to Ohm's Law (I = E / R), when voltage (E) is constant, current (I) and resistance (R) are inversely proportional. This means that if a path allows more current to flow, it must have lower resistance. Since resistor 'A' carries twice as much current as resistor 'B', it must offer less opposition to the current flow. Therefore, resistor 'A' has exactly half the resistance of resistor 'B'.