The correct answer is: C. It took the combined strength of all sled dogs to hold the dogs out of the dangerous ice sheet.
The first and second paragraph of the passage discuss the author's experience of being stranded on a glacier with her dogs. The main focus of these paragraphs is the danger they faced from the ice sheet and the efforts they made to survive. The correct answer is:
C. It took the combined strength of all sled dogs to hold the dogs out of the dangerous ice sheet.
The passage states that the ice sheet was too thin and dangerous for the dogs to walk on, and they would have died if they had tried. The author and her dogs were able to survive by using harnesses to tie the sledges together, which allowed them to pull each other out of the ice sheet. This demonstrates the importance of teamwork and the combined strength of all the sled dogs in their survival.
Complete question may be like this:
Which of the following statements best summarizes the first and second paragraph of the passage?
A. The only way to save the boats from the dangerous ice sheet Was for the men to strap themself into harnesses and pull them out
B. The only way to save the boats from the dangerous ice sheet was to toss out supplies.
C. It took the combined strength of all sled dogs to hold the dogs out of the dangerous ice sheet.
D. It took the combined efforts of all the men to roll the bolts out of the dangerous ice sheet.