They asked me some difficult questions .
change it into passive voice

some difficult questions were asked to me by them.

to and without are prepositions, so a, b, and d are prepositional phrases. the adverb phrase is c, about the surprise.

explanation:

first aid for seizures is aimed at keeping the person safe until the seizure stops on its own. stay calm, loosen anything around the person's neck, do not restrain them or put anything in their mouth, clear the area around them, and stay with them after the seizure stops.

hope this !