This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All of the following are features of thyrotoxicosis, except- 
Select and explain. 
A. Diastolic murmur, B. Soft non ejection systolic murmur, C. Irregularly, irregular pulse, D. Scratching sound in systole
A: Diastolic murmur
Answer: A: Diastolic murmur 
Explanation: None