Excessive dependence on tourism may affect the stability of the national economy. As far as inbound tourism is concerned, this is mainly because ()

Too much dependence on inbound tourism may affect the stability of the national economy. The main reasons include: ① The fluctuation of tourism demand will inevitably lead to unemployment, which will affect the national economic and social stability. ② The number of inbound tourists will be influenced by many factors such as political, economic, social and even climate changes in the source countries, all of which are beyond the control of the tourist receiving countries. Once these factors are adversely changed, it will inevitably lead to a substantial decline in the number of tourists visiting, which will not only seriously frustrate the economy of the tourist receiving countries, but also may be accompanied by serious social problems. In this sense, if a country's economy relies too heavily on tourism, it is tantamount to leaving its own destiny to others. Item B belongs to the positive impact of the development of tourism on the national economy.