3. How do paragraphs 1-4 contribute to the author's explanation of love at first sight? A They convey it as something that many people don't believe exists, and makes you silly if you believe in it. B They emphasize how it's impossible to prove or disprove, as everyone has unique experiences with love. c They prove that it's not a silly notion, but rather can be supported through scans of the human brain. D They suggest that it's mainly a plot device that is used movies