Vocabulary precision – adjective of accessibility: choose the word that completes the sentence naturally. Sentence: Some regions of our country still remain ____ to the average man. Pick the adjective that idiomatically collocates with "remain … to".

Given data

• Sentence: Some regions of our country still remain ____ to the average man.

Concept/Approach
The common collocation is remain inaccessible to, meaning hard to reach or enter. This best conveys limited reachability for ordinary people.

Option analysis
inaccessible — precise meaning and correct preposition pattern (to). ✅accessible — opposite sense; contradicts the implied difficulty. ❌available — generally used of items/services; not idiomatic with geographic regions in this frame. ❌hospitable — means welcoming; not about reachability. ❌

Final Answer
inaccessible