Can you show me some pictures of the story?
Tom placed the book on the shelf, it sat there for a week.
It is A because it restates the noun, CAT, with a different name, CALICO. It is also A because WHICH is a relative pronoun.
C is the choice I would make because I believe the writer is planning to answer this question: "and how come we think dogs are so smart". The writer never tells us what dogs can't do (a) or mention others being dumb (b) and doesn't make fun of humans (d)
CTRL+C = copy
CTRL+V = paste
DELETE = DELETE highlighted text.
If you copy text, and highlight the text you want to replace on word, then paste it, it will replace it.