How many subjects need to be retaken to upgrade from C2 to B2?

[VanKeira]

Upgrading from C2 to B2 requires retaking the exams. The B2 driver's license test consists of four subjects, with Subject 1 and Subject 4 being theoretical exams. B2 driver's license test content: Subject 1: Theoretical exam covering traffic regulations and other related content. Subject 2: Field skills test, which includes 16 items: reverse parking in a garage, parallel parking, stopping and starting on a slope, single-plank bridge, curve driving, right-angle turns, driving over bumps, passing through a narrow gate, driving on undulating roads, U-turns on narrow roads, simulating continuous sharp turns on mountain roads, simulating rainy and foggy weather conditions, simulating slippery roads, simulating tunnel driving, simulating highway driving, and simulating emergency handling. Subject 3: Road test, where various tasks are completed on actual roads. Subject 4: Exam on civilized driving and related content.