Ans is <span>A: were they....</span>
Pyramids.
Is this a homework question, or are you curious?
Edgar Allan Poe wrote a letter to John Allan on the 19th March 1827 to let him know that he was going to leave the latter's house in order to find a place where he could be treated in a better way. He had heard Mr. Allan saying he had no affection for him, so he thought it over for days, and finally reached to the conclusion that that house, was not a good place for him to leave.
This is a passive voice sentence
the active voice is "A dentist invented the electric chair"
So the subject is dentist
Hope I helped !
I Think The answer is c I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you