Answer:
theme
Step-by-step explanation:
a mood is basically a theme because a mood can set the whole story line and or plot. how? because a mood take mad for example may lead that charter a arrgument acroos country all because of a mood. Or take sadness it would mainly atke that charater to a place where they either feel pitty for them selfs or that mood will take them to a place where they feel happy because that is what they want to feel. Hopes this helps and have a wonderful day!