A Individuals whose first language is English and who like to take part in cross-cultural exchanges.
B Citizens of English speaking countries who take part in different oral and written contexts of language use.
C Interlocutors from diverse first-language backgrounds for whom English is the chosen language of communication.
D Professionals from all walks of life who need to learn English formally in reference to native-speaker norms.
E EFL learners whose advanced fluency in English allows them to travel and participate in intercultural communication.