I am riled up about those choices. I would say that
none of the choices can be a correct answer.
All four choices are just numbers, without units.
Resistance is not a bare, naked number.
It's a ratio of voltage to current, and in DC circuits,
it typically has units of [ohm] .
Resistance = (voltage) / (current)
= (18 v) / (36 A) = 0.5 ohm .
