This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
HTLV-1 causes which of the following? 
Select and explain. 
A. Tropical spastic paraparesis, B. Familial medeterranian fever, C. Cutaneous T cell lymphoma, D. burkitts lymphoma
A: Tropical spastic paraparesis
Answer: A: Tropical spastic paraparesis 
Explanation: HTLV1 causes tropical spastic paraparesis&adult T cell leukemia REF:MICROBIOLOGY ANANTHA NARAYANAN NINTH EDITION PAGE.567