The correct answer is
a. All parts of the circuit will begin to carry higher amounts of current than normal.
Explanation:
When two or more than two conductors of different phases touch each other in a power line, the part of the impedance is shunted out of the circuit due to which a large current flow in the un-faulted phases, such current is called the short circuit current. Short circuit current decreases the impedance in the circuit while the current in the circuit increases.
