题目内容：
Which of the following is closest in meaning to the phrase “the only game in town” ( Line3, Para. 4) ?
A．[ A ] The only approach to building an artificially intelligent compute B．[ B ] The only way for them to win a prize in artificial intelligence researc
C．[ C ] The only area worth studying in computer scienc
D．[ D ] The only game they would like to play in tow
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