Pre-approval refers to a business registration management procedure in which certain enterprises need to obtain the approval of the relevant competent authorities before they can apply for business licenses in the industrial and commercial departments before they can conduct business registration. Which of the following are not subject to pre-approval? ['Xiaocheng wants to open a music cafe, which needs to be approved by the Cultural Bureau.', 'Xiao Qu wants to open a famous tobacco specialty store, which needs to be reviewed and approved by the Tobacco Monopoly Bureau.', 'Xiaoyan wants to open a newsstand, which needs to be reviewed and approved by the Urban Management Administration Law Enforcement Bureau.', 'Confirmation of food hygiene in Xiaoyu restaurant must be approved by the Health Bureau.']