单选题 By the end of the first half next year, 15 travel agencies in mainland will be able to send tourism groups to Taiwan. Although the schedule is yet to be set, the registration in Guangzhou is already heating on. Authority says in the beginning of Taiwan's tourism opening, the market supply will hardly meet the demand. A lot of mainland citizens are expressing their fervent hope for an early visit to the beautiful island. Two travel agencies in Guangzhou will be authorized to send tourists to Taiwan, and the procedure will be very much alike to tourism to Hong Kong and Macau. Further details concerning airliners and entry ports are still under discussion. The price for 6—7 days travel are estimated to be around 8,000 Yuan, 9—10 days travel around the island will cost up to 10,000 Yuan. Some business travel can be as cheap as 4,000.Questions:

问答题 How many travel agencies in other places than Guangdong will be authorized to send mainland citizens to Taiwan next year?

问答题 Why will the market supply hardly meet the demand?

问答题 Have the details concerning airliners and entry ports already been known?