Current in a conductor can be increased by:

Current in a conductor can be increased by Both of these (3rd Option )
Explanation:
Ohm's law states that the current is directly proportional to its applied voltage and it is inversely proportional to the resistance between the points.
Factors increasing the current in a conductor are:
THE CURRENT IN A CONDUCTOR CAN BE INCREASED BY BOTH INCREASING THE VOLTAGE ACROSS IT AND DECREASING ITS RESISTANCE.
Explanation:
Ohm's law states that the voltage or potential difference between two points is directly proportional to current passing through resistance and directly proportional to resistance.
According to ohm's law,
V = I * R
It means voltage is directly proportional to current and resistance.
current and resistance are inversely proportional to each other.
so from the above law it can be stated that current in a conductor can be increased by both increasing the voltage across it and decreasing its resistance.