question: Based on the video, what does Birchbox sell?
answer_correct: Personalized monthly subscription boxes
answer_incorrect: Retro roller skates
associated_cpl: Birchbox CPL
cpl_message: Would you like a free mystery box with your subscription?
cpl_form_path: giftoffer/birchbox-gift-offer-promo-code
cpl_brand_name: Birchbox
cpl_tac_url_path: /pages/birchbox-gift-offer-promo-code-terms-conditions