Answer 2 is incorrect because FE does not have a semi-trailer tractor.
Vehicles specified in the E-class driving license with towing trailers and allowed to drive vehicles: passenger cars connected to wagons and vehicles specified for driving licenses of class B1, B2 , C, D, FB2, FD.
Vehicles specified in class E driving license with trailer towing, semi-trailer tractors and allowed to operate vehicles: passenger cars connected with wagons and vehicles specified for driving license class B1, 82, C, D, FB2, FD.