This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: ECG and Arrhythmia 3, Subject name: Medicine
What does the ECG show? 
Select and explain. 
A. Mobitz type 1 hea block, B. First degree hea block, C. Complete hea block, D. Mobitz type II hea block
A: Mobitz type 1 hea block
Answer: A: Mobitz type 1 hea block 
Explanation: Mobitz-I Hea block In ECG dropped beat is present Before & after of dropped beat PR interval are unequal.