Personally I would start with a quick warm up. Next, try paced run maxing out at 6:25's for a minute, then dropping back to 7:00 pace for 5 minutes before repeating.
Answer:
No one expected that outcome.
The word "while" is what makes the sentence a fragment, and substituting it with "when" would not correct it. The correct answer is B. delete "while" so that the sentence is: "She was making a pot of soup."
