To examine a sentence and identify whether it is in the subjunctive mood, you would look for instances that express a wish, a demand, or a hypothetical situation where the action depends on another action. Specifically, you would determine whether the sentence:
- Expresses a wish (e.g., "I wish that he were here.")
- Makes a demand or an order (e.g., "I insist that she be present.")
- Indicates a condition that is contrary to fact or hypothetical (e.g., "If he were taller, he would be a basketball player.")
Thus, the correct response would be to determine whether it expresses a wish, makes a demand or an order, or indicates that its action depends on another action.