Who couldn't find the hotel? is the correct answer. It is important to note the rule of use of pronouns as it applies to Who and Whom.
The Rule guiding the use of Who and Whom
Who functions as a subject while Whom functions as an object. This means that when the verb is being performed, you use Who. If however, the action is received, you use Whom.
Examples
- To whom shall we send the package?
- Who is sending the package?
See the link below for more about who and whom:
https://brainly.com/question/139669
