This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
Amyloidosis of hea presents with - 
Select and explain. 
A. Arrhythmia, B. AV block, C. |Ed mass/voltage, D. AS
A: Arrhythmia
Answer: A: Arrhythmia 
Explanation: Cardiac amyloidosis may affect the way electrical signals move through the hea (conduction system). This can lead to abnormal heabeats (arrhythmias) and faulty hea signals (hea block). The condition can be inherited. This is called familial cardiac amyloidosis Ref Davidson 23rd edition pg 456