Which of these would lower the resistance of a wire? PLEASE HELP AND I WILL GIVE BRAINLIEST

A
make the wire thinner
B
increasing the length of the wires
С
lowering the temperature of the wire
D
use denser material for the wire

What happens to atoms and chemical bonds during a reaction?

The stopwatch used by a student to measure velocity of a pulse in a slinky was of least count 0.1 second. he stops the stopwatch when a pulse has made 3 journeys from one end to the other of the slinky. he finds the seconds hand to be at 52nd division. calculate the correct time noted by him.

If we decrease the amount of force and keep all other factors the same what will happen to the amount of work