Answer: Group and heard.
Explanation: a noun is a word, other than a pronoun, used to identify any of a class of people, places, or things, or to name a particular one of these. A collective noun is is a type of noun that identifies groups of people and things as a single unit. From the given options, the collective nouns are the words "group" (that identifies a reunion of people) and "herd" (that identifies a large group of animals).
Confused there’s no picture...
From the Mixed-Up Files of Mrs. Basil E. Frankweiler takes the form of a letter from Mrs. Basil E. Frankweiler to her lawyer, Saxonberg. And what a letter it is.
Twelve-year-old
Claudia Kinkaid decides to run away from home with the help of her
little brother, Jamie (who is just nine years old). With Jamie's money
and Claudia's smarts, they bust out of that suburban joint and run to
somewhere that any kid would love. Disneyland? The rainforest? Sweden?
Nope—they end up at the Metropolitan Museum of Art. Less kid-friendly,
but more filled with pretty, elegant things.
See More Here:http://www.shmoop.com/from-the-mixed-up-files/summary.html
[B]:
Basically a bandwagon fallacy is "If many believe so, it is so".
Sorry i don't know the passages to be able to help