Resistance: The property of any conductor that opposes the flow of electric current through it and depends on the shape and size of the materials, temperature, and nature of the materials is called resistance.
It is denoted by R and the SI unit is the ohm (Ω).
The resistance is given by:
R = ρL/A
where ρ is resistivity, L is the length and A is the area of the cross-section.
EXPLANATION:
The resistance of a metal conductor is directly proportional to its length as the longer the conductor, the more will be its resistance. So option 1 is correct.
The resistance of a metal conductor is inversely proportional to the cross-sectional area.