Sony and Zenith Must Each Decide Which Technology to Utilize

Sony and Zenith must each decide which technology to utilize in building their 2019 model high definition television (HDTV) sets: either Alpha technology or Beta technology.Sony has a technological advantage in using Alpha technology and Zenith has a technological advantage in using Beta technology.The payoff table below shows the profit outcomes for both firms in the various possible technology choice outcomes: Suppose the technology decision will be made simultaneously. Which cells are Nash equilibrium cells?

A) Cell A
B) Cell B
C) Cells A and D
D) Cells A,B,and D
E) Cell D