Hiroko Learned Japanese and English Simultaneously as the Daughter of Immigrants

Hiroko learned Japanese and English simultaneously as the daughter of immigrants to Fresno, CA. Isaac is an American from the same town who studied Japanese for several years beginning as college freshman. Which alternative best describes the involvement of Broca's and Wernicke's areas in processing English and Japanese in these two individuals?

A) Hiroko - Broca's and Wernicke's areas are heavily involved only in processing English; Isaac -- Broca's and Wernicke's areas are heavily involved only in processing English
B) Hiroko - Broca's and Wernicke's areas are involved in processing both English and Japanese; Isaac -- Broca's and Wernicke's areas are involved in processing both English and Japanese
C) Hiroko - Broca's and Wernicke's areas are involved in processing both English and Japanese; Isaac -- Broca's and Wernicke's areas are heavily involved only in processing English
D) Hiroko - Broca's and Wernicke's areas are heavily involved only in processing Japanese; Isaac -- Broca's and Wernicke's areas are heavily involved only in processing English