Final answer:
Rob Hall's main rule for the team until they reach the crest of the Southeast Ridge is Stay roped together at all times.
The answer is option ⇒a
Step-by-step explanation:
In the book "Into Thin Air" by Jon Krakauer, which recounts the tragic Mount Everest expedition in 1996, Rob Hall, an experienced mountaineer and expedition leader, emphasizes the importance of staying roped together for the team's safety.
Roping up ensures that if one member were to fall or encounter difficulties, the rest of the team can provide support and prevent accidents from turning into disasters. This rule helps maintain a sense of unity and ensures that no one is left behind or isolated during the climb. By staying roped together, the team can navigate the treacherous terrain as a cohesive unit and increase their chances of reaching the summit safely.
The answer is option ⇒a