Answer:
'flow of electric charges ' must be current.
'opposition to the flow of electric current ' must be resistance.
'stored potential energy at the source of a circuit ' must be voltage.
Step-by-step explanation:
Current is the flow of electrons per unit time. So, the option goes with 'flow of electric charges ' must be current.
Resistance is the measure of the opposition to the current flowing in a conductor. So, the options goes with 'opposition to the flow of electric current ' must be resistance.
Voltage is defined as the stored potential energy in the source of the circuit. So, the options goes with 'stored potential energy at the source of a circuit ' must be voltage.