Final answer:
2. Tourism planning is essential to manage tourism development in a sustainable and responsible manner.
Step-by-step explanation:
Tourism planning is essential to ensure that tourism development is managed in a sustainable and responsible manner. While tourism can have positive impacts on a community, such as economic benefits and job creation, it also has negative consequences on the environment and local cultural traditions.
Therefore, option 2) Tourism development has only negative impacts is the correct answer as it does not reflect the multifaceted nature of tourism planning.