Choose the correct word to complete the sentence:
Navigating through the dense forest, the hikers encountered _________ terrain, making the trek more challenging and adventurous.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. treacherous.
The word "treacherous" means dangerous, risky, or hazardous, which makes it the best fit for describing the terrain that adds challenge and adventure to the hike.
The other options don't match the context:
"Predictable" implies something easy to anticipate.
"Monotonous" means dull or lacking variety.
"Tranquil" means peaceful or calm.