The correct option is
A us to move
The given sentence already contains a verb 'wanted'. Thus, the answer must contain a non finite verb that indicates the police's wish for the objects to shift their car to the side of the road. Further, the answer must also contain a pronoun that refers to the objects.
Option A is correct. 'us to move' contains a pronoun 'us' that refers to the objects of the given sentence. Further, it also contains a non finite verb that suggests the police's wish for the objects to shift their car to the side of the road.
Option B is incorrect. 'well to move' contains a non finite verb 'to move' but, the word 'well' is an adjective and not a pronoun which refers to the objects of the sentence. Thus, it is incorrect
Option A is incorrect. 'we moved' contains a main verb 'moved' and having two main verbs in one sentence will make it grammatically incorrect.
Option A is incorrect. 'is moved' contains a main verb 'moved' and having two main verbs in one sentence will make it grammatically incorrect. Further, it also does not contain a pronoun that refers to the objects of the sentence. Thus, it is the incorrect answer.