Number of ways to arrange 0 marbles?

Question

A game has to be made from marbles of n colors, where n marbles has to be kept one upon another. In how many ways these marbles can be arranged?

Is the answer is $1$ if $n = 0?$

Answer 1

Yes, there is one arrangement of no things. Sometimes it is a special case if you are making a recurrence relation, but often not.