The primary purpose of the lodging industry is what? to provide food to guests to provide sleeping rooms for guests to provide entertainment to guests to provide tourist planning to guests

To provide sleeping rooms for guests

Explanation:

The lodging industry is a an industry that has been constantly on the rise in the past century. The main reason for that is that there are more and more people that travel, be it in their own countries or internationally. The lodging has the basic purpose of providing a shelter for the travelers, thus providing sleeping rooms for them. This is a crucial service for the travelers as they are able to be in a warm, safe place, where they can sleep and rest without any worries, and also have at disposal certain basic housing elements if they need them.

the answer is b, encourage free trade

d.) continue to rise rapidly