what is the opportunity cost of an input which has no alternative use - Economics - Introduction

Question

what is the opportunity cost of an input which has no
alternative use ?

Richa Gupta · Accepted Answer

If an input has no alternative use then the opportunity cost of
that input is zero This is because opportunity cost refers to the
value of the next best alternative As in the given case, there is
no alternative available so, the OC will be zero

what is the opportunity cost of an input which has no alternative use ?