CAN SOMEONE PLEASE REVISE THIS OR SHORTEN IT OR GRAMMATICALLY CORRECT THIS SENTENCE!!! I have no idea if I need a ; or , or something please any English Expert willing to help

In one of the experiments conducted was the abandonment of babies; as they sat in their infant seats, their mother’s sitting by them, until ten minutes later, a signal appears, indicating their cue to leave.

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In living to tell the tale, what does the following passage mainly reveal about the narrator (paragraph 2)? “there was not a single door, crack in the wall, a human trace that did not find a supernatural resonance in me.” : a) the narrator associates memories to specific objects that he sees. b) the narrator realizes the buildings around him should be demolished. c) the narrator feels as though he wants to connect to the people of the town. d) the narrator is unsure why he feels frightened while walking with his mother.

Look at this dictionary entry: realize (ree-uh-lyz) v. to become completely aware of (something) as a fact; understand without a doubt to make (something desired or anticipated) occur to give real, definite or physical form to a plan, dream, or goal to earn (money or a profit) from a deal which sentence uses the word realize as it is described in the fourth definition? a. mike realized the gravity of the situation only when dalia explained it to him. b. only hard work and perseverance can people realize their dreams. c. he felt that his vision was realized when he finished reading the final draft of the narrative. d. fay's glass paintings are expected to realize a handsome profit. e. dan will realize his goal of going to an ivy league school only if he works hard.