What are the signs and symptoms of atrial fibrillation?

Palpitations, dizziness, fatigue, chest pain, dyspnea or presyncope are common signs and symptoms.
Most symptoms are due to tachycardia.
It is unusual for patients to experience dizziness or dyspnea due to atrial fibrillation with controlled frequency alone, and these patients should be evaluated for other causes of their symptoms.
a) Only I is correct.
b) I and II are correct.
c) I, II, and III are correct.
d) All statements are correct.