which sentence most needs to be revised because its description is too vague?\no we hiked two miles uphill…

which sentence most needs to be revised because its description is too vague?\no we hiked two miles uphill in the blooming forest today.\no we sprinted back and forth in the stuffy high school gym.\no we had to walk up several flights of stairs to get there.\no we stretched and then slowly jogged once around the track
Answer
Brief Explanations:
The third sentence "We had to walk up several flights of stairs to get there" is too vague as "several" is an imprecise quantity and "there" is an undefined location. The other sentences have more specific details like distance ("two miles"), location - description ("blooming forest", "stuffy high school gym", "around the track") and activity - description ("hiked uphill", "sprinted back and forth", "stretched and jogged").
Answer:
We had to walk up several flights of stairs to get there.