44.The Common European Framework of Reference for Languages: Learning, teaching and assessment Ability (CEFR) is an international standard, which describes language ability at six reference levels. According to the descriptive scheme, if learners can produce well-structured detailed text on complex subjects, displaying controlled use of organizational patterns, connectors and cohesive devices, their speaking ability is classified at the __________ level. (A) B1 (B) B2 (C) C1 (D) C2