The correct answer is: C. both the ground fault and the short-circuit fault.
The Murray loop test is a method of locating ground faults and short circuit faults in cables. It works by creating a current loop between the cable and a test instrument. The current flow through the loop creates a magnetic field, which can be detected by the test instrument. The location of the fault can be determined by measuring the strength of the magnetic field at different points along the cable.
The Murray loop test is a safe and reliable method of locating cable faults. It is often used in industrial and commercial settings, where it can help to prevent costly downtime.
Option A is incorrect because the Murray loop test can also be used to locate short circuit faults.
Option B is incorrect because the Murray loop test can also be used to locate ground faults.
Option D is incorrect because the Murray loop test can be used to locate both ground faults and short circuit faults.