Answer: A. He made electricity less expensive and more readily available.
Explanation: All of the other choices seem way out of line. We all know that Thomas Edison invented the light bulb, relating to electricity. Japan didn't have much to do with the Industrial Revolution. Eli Whitney was the inventor of the Cotton Gin (a machine for separating cotton fibers from seeds). And I'm pretty sure Samuel Slater was the one who brought designs for a textile mill from Great Britain to the United States. The only rational answer would be A.
Timothy Leary was a psychologist advocating psychedelic drugs (such as LSD). The Haight- Ashbury district is known as the craddle of hippie culture. The communes were also associated with the Hippie movement: what all those things have in common is being a part of the counterculture.
The right answer is D.
Because the constitution does not address how state and local governments share power.
I hope this helps!
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