<span>
The sources begin to state your main idea instead of supporting it. APEX :)</span>
B- is the main idea I bieleve
Answer:
The answer is B. to show how long it took to complete the final climb to reach the summit
Explanation:
It can't be C. because there are not details of difficulty. It can't be A because they are literally experienced climbers. Lastly it's not D because if it were really important to stress that Idea they would have used time a lot more often in the story.
I know this answer because I've had to answer it before.
(The best brainly answerer Que is officially back).
Your answer is C, 21 poems