According to findings derived from functional magnetic resonance imaging (mri), the area of the brain in which a second or third language is stored depends on the age of the language learner; whereas each language occupies a distinct area of the brain in an adult learner, language areas overlap in a young child.
(a) whereas each language occupies a distinct area of the brain in an adult learner,
(b) whereas for adults each language occupies a distinct area of the brain and
(c) each language occupies a distinct area of the brain when they are learned by an adult, while
(d) each language in adults occupied a distinct area of the brain, while
(e) each language occupying a distinct area of the brain for an adult learner, and