What literary device involves an action that has an effect that's opposite of the intended effect?

Why would victor frankenstein rather than his creation most likely be considered a monstrous? a. because he uses ancient curses and spells to give his creation life b. because he seeks only the company of professors and not his friends c. because he wishes to be a famous scientist d. because he is obsessed with creating a living being

Reading critically involves reading to criticize reading many texts questioning a text talking about interests

Dogs make wonderful pets because they us stay happy and healthy. the topic sentence is "dogs make wonderful pets." , is this correct? i keep doubting myself.