Where may you park here?

You answered correctly that parking is allowed on both the left and right-hand hard shoulders here.

In German traffic rules, a "hard shoulder" is the paved strip at the edge of the road where parking is permitted unless otherwise indicated. Since this road has marked hard shoulders on both sides—visible as paved areas next to the driving lanes—you are allowed to park on either side.

The absence of no-parking signs or markings means there is no restriction against parking there. Therefore, you may park on both the left and right-hand hard shoulders safely and legally.

Remember, always check the local signs and markings first, as some areas may prohibit stopping or parking on shoulders for safety or traffic flow reasons. In this scenario, the conditions and signage clearly permit parking on both sides, which is why option 1 is correct.