A customer complained that every time he turned on his vehicle's ...

[futuristic]

A customer complained that every time he turned on his vehicle's lights, the left side turn signal indicator light on the dash remained on. The most likely cause is ________.
◦ A poor ground to the parking light (or taillight) on the left side
◦ A poor ground to the parking light (or taillight) on the right side, causing current to flow to the left side lights
◦ A defective (open) parking light (or tail light) bulb on the left side
◦ Either A or C

[tkempin]

Either A or C

[futuristic]

TYSM

[ebonylittles]

Great answer, keep it coming