"A. Our car wouldn't start, so Dad called a tow truck to take it to the mechanic" is a correct sentence, not a run-on, since the comma separate the dependent clause from the independent clause.
On July 4, 1776, by voice vote, the Declaration of Independence was approved; however, only John Hancock and Charles Thomson signed the written document that was approved that day. A more formal version was created and signed on August 2, 1776 by the persons whose names are on the document
Well, I would say society because talk according to each persons POV (point of view) or perspective.