When choosing IGCSE subjects, which one should I choose between First Language English and Second Language English?

First Language English covers the following topics: -Grammar and vocabulary -Writing and speaking -Reading and literary comprehension -Interpretation and analysis -Criticism and comparison First Language English is intended for students who use English as their first language. This subject requires a high level of language proficiency and literary understanding necessary for students to comprehe..

원문링크 : When choosing IGCSE subjects, which one should I choose between First Language English and Second Language English?