Read the text below, which discusses the linguistic complexity in Brazil and the status of English:
“[…] Brazil faces many challenges to learn foreign languages, be them the language of their parents (heritage languages such as Guarani and other indigenous languages or immigrant languages such as Italian, German, Japanese and Pomeranian, to cite but a few), the language of their neighbors (Spanish), the international language (English) or even appropriations of English such as Brazilian English, whatever that may be. Jenkins proposes the view of English as a multilingual franca as referring to its use in multilingual contexts where most people share the same lingua franca, and in that sense, Finardi proposes that English has the status of an international language, rather than a multilingua franca in Brazil. In a country with more than 200 languages spoken by minorities, the development of multilingualism and the view of English as a multilingua franca in Brazil represent a huge challenge for educational policies and pockets […].”
Considering the theoretical role of ELF (English as a Lingua Franca) and the context described, which statement best describes the essential function that ELF must fulfill to mitigate the national risk of linguistic isolation and strategically facilitate global engagement?