GMAT Critical Reasoning (CR) | People often pronounce a word differently when asked to read

People often pronounce a word differently when asked to read written material aloud than when speaking spontaneously. These differences may cause problems for those who develop computers that recognize speech. Usually the developers train the computers by using samples of written material read by the people who will be using the compute.

The observations above provide most evidence for the conclusion that

(A) It will be impossible to develop computers that decode spontaneous speech.
(B) When
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