Bella is an 8 -year-old girl who is brought in by her father for evaluation

Bella is an 8 -year-old girl who is brought in by her father for evaluation. He reports noticing her daughter wheezing and gets out of breath when she plays outside. He also reports coughing episodes at night that occur occasionally. Bella’s older brother has asthma and so they want to have her evaluated. Which of the following findings would support an asthma diagnosis? A.