Among right-handed people, _____ have their left hemisphere also in control of speech.

• A. none
• B. some
• C. most
• D. all

Answer: (C)

Verified step by step guidance

1. Understand the context: The problem is about the lateralization of brain functions, specifically speech control, in right-handed individuals.
2. Recall the concept of brain lateralization: In most people, the left hemisphere of the brain is responsible for language and speech functions.
3. Consider the population in question: The problem specifies right-handed individuals, who typically have a more pronounced lateralization of brain functions.
4. Apply statistical knowledge: Research indicates that a significant majority of right-handed people have their speech functions controlled by the left hemisphere.
5. Conclude based on evidence: Given the typical patterns of lateralization, the most accurate answer is that 'most' right-handed people have their left hemisphere in control of speech.