
Passage: No computer can do everything the human brain can do, because some problems cannot be solved by running any mechanical program. The computer can only solve the problem by running mechanical programs.
Question: Which of the following options is the assumption on which the above discussion depends?
A. A.At least one problem is that it can be solved by running mechanical programs, but it can't be solved by anyone's brain.
B. B.At least one problem is that it cannot be solved by running any mechanical program, but it can be solved by at least one person's brain.
C. C.At least one problem is that it can be solved by running any mechanical program, but it can't be solved by anyone's brain.
D. D.Every problem can be solved by everyone's brain if it can be solved by running at least one set of mechanical programs.
Answer: