Each of the two identical resistors in the series has a resistance of 4.4Ω, calculated using Ohm's Law by dividing the total resistance (8.8Ω) by two. The correct option is D.
To find the resistance of each resistor, we can use Ohm's Law, which is V = IR, where V is voltage, I is current, and R is resistance. Given that the voltmeter reading is 2.2V and the ammeter reading is 0.25A, we first find the total resistance in the circuit by rearranging the formula to R = V/I. So, R = 2.2V / 0.25A = 8.8Ω. Since the two resistors are identical and in series, each resistor has half the total resistance. Thus, the resistance of each resistor is 8.8Ω / 2 = 4.4Ω.