Answer:
Both climbers rested on the wall at a constant height for 2 minutes.
Explanation:
Abby's climb begins with an increase. Then she rests from x = 4 to x = 6, which is 2 minutes. Then she increases again before she decreases.
Brynn's climb begins with an increase as well. Then she rests from x = 5 to x = 7, which is 2 minutes. Then she decreases.
The only correct statement is that both climbers rested on the wall at a constant height for 2 minutes.