Answer: B. sled dogs face many types of obstacles in the North, including extreme cold, challenging terrain, and unpredictable weather. The dogs run through a land that gets so cold that the ocean freezes Into ice. The terrain is challenging, as dogs can climb mountains of 5,000 feet and swim through ice fioes. The weather can change quickly, resulting in ice storms and blizzards. The extreme temperatures molt terrain, and bad weather are all obstacles that sled dogs face in the North.
Explanation:
The text-based response that best answers the question: "What types of obstacles do sled dogs face in the North?" is option B.
Option A is incorrect as the option provided didn't explain the obstacles that the sled dogs faced in the North.
Option C is incorrect as it didn't explain the kind of obstacles that sled dogs face but rather, it explains how they can survive cold.
Option D is incorrect as the obstacles discussed were general as it wasn't specific to the North.
Option B is correct as it gives a detailed analysis on the kind of obstacles that the dogs face and explained it in detail.
