Final answer:
The term 'mood' in design refers to the atmosphere of a space which includes elements like lighting, color, and furniture that contribute to the overall ambiance.
Step-by-step explanation:
When designing a space, the term mood refers to the atmosphere that is created within that space. Mood encompasses a variety of elements that can influence how a space feels, such as lighting, color, furniture, and other design aspects. While options like lighting, color, and furniture certainly contribute to the mood, they are components of the broader concept of atmosphere that defines the overall ambiance and feeling evoked within the space.