1.Explain mountain tourism?
2.Explain inland tourism?

1. Mountain Tourism is a type of "tourism activity which takes place in a defined and limited geographical space such as hills or mountains with distinctive characteristics and attributes that are inherent to a specific landscape, topography, climate, biodiversity (flora and fauna) and local community.

2.
Inland trips means trips to the part of the country away from the coast, without specifying who is taking those trips. Such trips may let the world know about your country, or they may not.

Foreign trips. on the other hand, is fatally ambiguous. It can mean, and has been taken by others here to mean, trips by foreigners to your country, which would be what is asked for. But technically, a foreign trip is just a trip to a foreign country and the trip-takers should be presumed to be your fellow-countrymen; if they travel abroad, that would give them information about the world, not the other way about.

So the choice is between a bad answer and a very bad answer. I would say inland is less bad, but if the examiner thinks one choice is correct, you need to know how he thinks, not how the English language works.

I hope some of that may help I found it off the web.. sorry if it dosent

It would be choice c (1040ez)