What emergency safety items are legally mandatory to carry on every agricultural tractor driving on public roads in Austria under KFG § 102?

1. A warning triangle only, since tractors are exempt from carrying a first aid kit
2. A first aid kit only, since tractors are exempt from carrying a warning triangle
3. An approved first aid kit in a dust-tight container (Verbandszeug) and an approved warning triangle (Warndreieck)
4. A fire extinguisher and a set of wheel chocks