In the question given below, out of four alternatives, choose the one which can be substituted for the given word/sentence.

The raison d'etre of a controversy is

A.

The enthusiasm with which it is kept alive

B.

The fitness with which participants handle it

C.

The reason or justification of its existence

D.

The unending hostility the parties concerned have towards each other

Correct answer is C

No explanation has been provided for this answer.