Whats the answer will mark brainliest if its correct

The answer is D because we celebrate it knowing that worker rights improved

Explanation:

D. Labor Day is celerbrated around the world to honor the importance of rights.

tell me if i got wrong or right pls

  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.