单选题 Scientific evidence from different disciplines demonstrates that in most humans the left hemisphere of the brain controls language.

【正确答案】 D

【答案解析】[分析] 名词辨析。 disciplines纪律，学科；A．groups of followers追随者团体：B．years年龄，年代：C．countries国家；D．fields of study研究领域；因此选项D为答案。