What would decrease the resistance of wires carrying an electric current?

shorter wires

higher-temperature wires

darker-colored wires

thinner wires

I believe the answer is shorter wires because there is less to travel

Resistance, R = ρL / A

where R = Resistance, ρ = constant called Resistivity, L = Length and A = Area,

From the formula, above, the Resistance R would decrease if the length is small.

So from the options, that correspond to:

shorter wires