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: Radiology
The first CT scan was manufactured by: 
Select and explain. 
A. Hitachi, Japan, B. Mitsubishi, Japan, C. Electromusical instruments, England, D. General Electric, USA
C: Electromusical instruments, England
Answer: C: Electromusical instruments, England 
Explanation: Ans. Electromusical instruments, England