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: Gynaecology & Obstetrics
Signs of heart disease in pregnancy:a) Diastolic murmurb) Systolic murmurc) Tachycardiad) Dyspnea on exertione) Nervousness or syncope on exertion 
Select and explain. 
A. acd, B. ade, C. abd, D. ad
B: ade
Answer: B: ade 
Explanation: None