Correct answer is (c) Electrical resistance (Parallel)
To explain: When two wires with electrical resistances R1 and R2 are connected in series than the total resistance is an extensive quantity Rtotal = R1 + R2, but when the wires are connected in parallel the total resistance is not extensive 1/Rtotal = 1/R1 + 1/R2. Therefore, electrical resistance is not an extensive nor intensive quantity.