A.Best alternatives available for choosing a place to spend holidays.
B.What incentives travel agents can get from business partners.
C.The fierce competition among hotels, restaurants, and services.
D.Best strategies for travel agents' clients to bargain over prices.
A.10 percent of commissions from its partners.
B.15 percent of the commissions.
C.About 10 percent of his total expense.
D.More than 15 percent of the total expense.