Find the word that acts as either a predicate noun or a predicate adjective in the sentence your work is almost always very neat

i believe the answer is inference

the answer is b. i read this story before.

  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.