Which question would be answered with an opinion? Click to view the passage, "On Top of the World."
O A. What kinds of tools did you take?
O B. Was it harder to go up or to go down the mountain?
C. How long did you train to get ready for the climb?
D. How much money did you spend on tools?

  this riddles' answer is library.

  the "leaves" are a reference to the books' pages that the library contains; the branches are a network of libraries that connect multiple libraries' collections, resources, and items in a system of a common database, integrating them; the branches' organization are a useful management tool for coordinating the multiple collections many libraries have.

wrong! the answer is c.