We can safely conclude that Dr. J. Von Neumann is a______.

A．Many outstanding men want to see whether machines can judge and think.
B．There are already in existence some computers that can understand logic.
C．Dr. J. Von Neumann proved that some computers are complicated enough to reproduce themselves.
D．Human brain is too complex and complicated to be copied with the present level of technology.

A．generalize better about types of people
B．find better water supplies
C．gain an insight into its influence on mankind
D．live to a ripe old age