Can a C1 license be directly upgraded to an A3?

[StLondyn]

A C1 driver's license can be directly upgraded to an A3. The A3 is a city bus driver's license and is the only A-level license that can be applied for during the initial application. It is also the only A-level license that can be directly upgraded from a C1. Details of the C1 to A3 upgrade exam are as follows: 1. Upgrading from C1 to A3 requires retaking all exams from Subject 1 to Subject 4. Subjects 1 and 4 are the same as for the C1, covering theory and civilized driving tests, while Subject 3 is also the same as the C1, involving a road test. Only Subject 2 is different. 2. The A3's Subject 2 consists of 16 items, including reverse parking in a garage, parallel parking, hill start, 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, simulating slippery roads, simulating tunnel driving, simulating highway driving, and simulating emergency handling.