Answer:
"I think the fact that you were able to climb up those stairs without incident demonstrates how strong your heart has become," Dr. Morrisfield declared.
"I wouldn't have been able to take those stairs a few months ago," Cara said.
Step-by-step explanation:
According to the given passage, it is narrated that Cara and her mother took the stairs up to the eight floor because the elevator was out of order and when they got to the doctor's office, they were both out of breath.
However, the doctor declared that because she was able to climb eight flight of stairs, her situation had improved 100%.
The two statements from the passage that best support the idea that Cara's health is improving are "I think the fact that you were able to climb up those stairs without incident demonstrates how strong your heart has become," Dr. Morrisfield declared.
"I wouldn't have been able to take those stairs a few months ago," Cara said.