The U.S. Constitution is:

A.
the world's only written constitution.

B.
the world's longest written constitution.

C.
the world's oldest functioning written constitution.

D.
the world's favorite written constitution.

Respuesta :

C.The world's oldest functioning written constitution.

[ More information. - There are many written constitution and Indian constitution is the longest but American cons. is oldest made in 1788 & came into force in 1789 ]

Hope this helps!
Your answer is c! America's constution is known for being the oldest. Have a nice day!