Commercial bribery refers to the person in charge or employee who buys customers through improper means such as secret payment of property or other compensation in order to gain trading opportunities in market trading activities, especially to gain market advantages over competitors. Partners, agents, and staff of relevant government departments can influence the behavior of relevant personnel in market transactions. According to the definition above, which of the following options is a commercial bribe? ['A construction company invested 1 million yuan to establish an orphanage to establish a good social image, and later won the bid for the municipal government project tender.', 'Xiao Wang, a government official, gives priority to project approval procedures for his classmates.', "Doctor Lee bought foreign medical equipment at a high price, and the manufacturer of the equipment provided Lee's daughter studying abroad for one year free of charge.", 'A brand beer manufacturer advertises the effectiveness of its beer in the mall.']