Can't see it so I can't help
B if you look back in the history books
John Hancock was the leader of the colonists. He was appointed as an interim president during the continental congress. He led the colonists through the revolutionary war. He has the largest signature on the Declaration of Independence.
Answer:
B).Electric power had to be made widely available.
Explanation:
When Thomas Edison developed the electric bulb, it was necessary for electricity to become available in homes and businesses in order for the public to consume his invention massively. In fact, electricity did not turn widely spread until the Second Industrial Revolution in the late nineteenth century, when it began to be used for street and home lighting.
