What caused many people to suspect that the light was merely car

headlights?

A) the rerouting of US highway 45

B)

evidence of human manipulation

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inquiries by professional investigators

D) television programs about the Paulding Light

B)

Evidence of human manipulation

Explanation:

Many similar cases like Paulding Light were springing up all over the USA at the time of the investigation's heyday.

The unexplained light soon lost its charm as many other places were found out with mere headlights and flashlights.

However, It has never been proved that there was in fact human manipulation involved in this case itself, disconnected from all other places.