What is an example of a subjunctive mood?

The subjunctive mood is used to express hypothetical situations, wishes, or conditions that are contrary to fact. The sentence in the correct choice effectively illustrates this mood by using the phrase "If I were rich," which suggests a condition that is not currently true. It reflects a desire or a hypothetical scenario rather than a statement of fact. The use of "were" instead of "was" for singular subjects emphasizes this non-real condition, indicating that the speaker is contemplating a situation that doesn't exist.

In contrast, the other choices convey factual statements or intentions without the hypothetical nuance found in the subjunctive mood. The choice that states "I am rich and I travel the world" describes a current reality, while "I will travel the world if I have time" indicates a future intention based on a condition that could be true. Additionally, the imperative "Be rich and travel the world" does not express a condition but rather gives commands. Thus, the selected example captures the essence of the subjunctive mood perfectly through its conditional and non-factual structure.