At the incident scene, who handles media inquires?
a. external affairs specialist
b. media relations specialist
c. communications officer
d. public information officer

d. public information officer

Explanation:

A public information officer is a communication coordinator or spokesperson of a government organization. A person in this position handles media inquires. His job also includes providing information to the public. Throughout the whole process, the public information officer needs to pay attention of legal requirements of disclosure.

  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.