Go downstairs and ask your mother

You walk down the stairs, not changing your clothes out of fear mostly.

You approach your mother and ask her about all this.

"oh well after your problem last night, I decided to lock you up, to make sure you can't do things like that again. this is a continuation of your punishment!"

You nod, trying not to lose it, but you're also afraid of what could come next...

"you should change out of that. Here are some clothes!"

Your mother gives your three boxes

"Go choose one of those to wear and come down!"

you take the boxes upstairs and look into them.