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: Physiology
Tropomyosin : 
Select and explain. 
A. Helps in the fusion of actin and myosin, B. Covers myosin and prevents attachments of actin ad myosin, C. Slides over myosin, D. Causes Cat' release
B: Covers myosin and prevents attachments of actin ad myosin
Answer: B: Covers myosin and prevents attachments of actin ad myosin 
Explanation: B i.e. Covers myosin and prevents attachment of actin and myosin