A 66-year-old woman with suspected atrial fibrillation wants to know why she is being asked to wear a Holter monitor for 24 hours. Which of the following is the appropriate response?

"This is what the physician thinks is best in order to give you the most accurate diagnosis."

"According to the guidelines, this is the most accurate way to determine if you have atrial fibrillation, and it will help us determine how to treat you going forward."

"It's possible you have atrial fibrillation, but the electrocardiogram did not provide a definitive answer. This monitor will give a clear picture of your heart rate so that you can receive the most accurate diagnosis."

"You should consider yourself lucky it's only for 24 hours. Some people have to wear a monitor for up to 7 days."