challenge: Who defeated Norihiro Akimura in the first round of the Spring National Championships in 1983?
  
  A. Takaoka Sho's pitcher
  B. Masaaki Miura of Yokohama Sho
  C. Takeshi Yamada of Kurume Sho
  D. Mitsuru Ogiwara of Sendai Sho
  Answer: 