With regard to handedness and hemispheric speech dominance,
a. over 90 percent of the population shows right-hemisphere dominance for speech.
b. left-hemisphere speech dominance is noted in 50 percent of right-handed people.
c. left-hemisphere speech dominance is noted in 50 percent of ambidextrous people.
d. over 90 percent of the population shows left-hemisphere dominance for speech.
e. right hemisphere speech dominance does not occur in left-handed people.
Answer: d. over 90 percent of the population shows left-hemisphere dominance for speech.
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