Series circuit rules: same current, additive voltages

Steps:

• Confirm resistors are in series, sharing one current path.
• Apply rule: current is identical through series components, so I1 equals I2 reading.
• Voltmeters V1 and V2 measure drops across each resistor.
• Total battery voltage equals V1 + V2; V2 value is its direct reading, confirmed by sum relation.

Why B is correct:

• B states I1 = I2 (same current law) and V2 via sum of V1 + V2 (Kirchhoff's voltage law for series).

Why the others are wrong:

• A: Assumes equal voltages V1 = V2, false unless resistors identical.
• C: Sums currents I1 + I2 for I1, invalid for series (no branching).
• D: Misapplies sum of currents to I1 and equal voltages, both incorrect for series.

Final answer: B