Off in the distance, you see the headlights of a car, but they are indistinguish

Question

Off in the distance, you see the headlights of a car, but they are indistinguishable from the single headlight of a motorcycle. Assume the car's headlights are now switched from low beam to high beam so that the light intensity you receive becomes three times greater. What then happens to your ability to resolve the two light sources?

It remains the same.It becomes one-ninth as good.It increases by a factor of 3.It increases by a factor of 9.It becomes one-third as good.
The above are possible choices.

Explanation / Answer

It remians the same

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