This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pathology
What does "cardiac polyp" mean? 
Select and explain. 
A. Acute infarct, B. Cardiac aneurysm, C. Benign tumor, D. Fibrinous clot
D: Fibrinous clot
Answer: D: Fibrinous clot 
Explanation: A pedunculated tumor attached to the inside of the hea. If situated close to a valve, it may cause blockage of the valve intermittently. Robbins 8 th edition page no. 384