Concept:Inbound tourism is the flow of international visitors into a country from abroad.
Explanation:Tourism is grouped according to the direction of travel of the visitor.
Inbound tourism refers to visits to a country by non-residents of that country.
For instance, tourists from outside Nigeria who travel within Nigeria are taking part in inbound tourism.
This is the opposite of outbound tourism, which happens when residents of a country travel to other countries.
It should not be confused with domestic tourism, which involves residents touring within their own country.
Therefore, the option that correctly defines inbound tourism focuses on non-residents moving inside the country.
Answer:A. Non-residents of a country travel within it.