El resto de la frase: and has proved to be competent in English language at the CEFR level: C1. Luego dice: "test provided via Global Business School".What is this test, and in what country is it being taken?
Thanks for the explanation, and I still need to translate the word "core" to Spanish.For those not familiar with the CEFR, it refers to the Common European Framework for the Reference of Languages (The CEFR Levels), which indicates the level of proficiency in various languages.