Parentheses are used to a. indicate omissions b. add words c. set apart citations d. introduce longer quotations

The correct answer is C.)  set apart citations

Explanation:

  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.

the hobbit: myths,legends and folktales influence world building and how the motifs of the hero and quest are developed in literature."willing suspension of disbelief" is the evidence and an exercise in which the critical intellect has been changed to uncomplaining.

the hunger games : its a story about a reality show where 24 teenagers must kill one another with spears,rocks,arrows,knives,fire and by hand.“destroying things is much easier than making them.”is the evidence which gives us message that destroying is easier and making something new is extremely difficult.