Read the following premise and pick the correct choice. Then, respond with which of the choices is correct.
Premise: The woman hummed to herself.

Choice 1: She was nervous.
Choice 2: She was in a good mood.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2. The woman was in a good mood. Humming to oneself is often a sign of contentment or happiness.