<u>Who </u>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.
<h3 /><h3>The Rule guiding the use of Who and Whom</h3>
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.
