Dr Sam Birk Is Planning to Discover If Italian and Greek

Dr Sam Birk is planning to discover if Italian and Greek women who migrated to Australia in the 1960s have the same concept of healthy eating. Since many of these women have limited English language, he intends to interview them in the language of their country of origin. Which of these is a major barrier to him successfully achieving his aim?

A) Finding experienced interviewers who are native speakers of each of the two languages is difficult.
B) Words used by one language group for certain health concepts may not have equivalents in the other language.
C) The age-range of the samples ranges widely from 65 to 85.
D) Some of the women learned to cook in Italy or Greece, while others did so after arriving in Australia.