As far as I can tell, this sentence has proper grammar.
My favorite memory is when my father was completing his work Objective by Evaluating the Synthesis of chemical compounds and Modifying them, to create an experiment with Independent and Dependent variables. I had come into his office to work on English homework. I was working on Clauses. When I asked my Dad what he was mumbling about he said that the compounds were Indivisible, and that he needed to Eradicate one of the variables, and that the Eradication of one of the variables was Imperative to how well the experiment went. This is my favorite memory because we got to work together.
P.S you can use this as your own if you'd like.
Rational and logical are quite similar in meaning but rational is something that has logic. These two words are close synonyms and not antonyms.
He would try and reproduce the senses of a child to help better understand them
i would say the anwser is most definetly C
