If you're asking which symbol would have this effect, it would be The medical kit, because you would need to be prepared for the emergency.
A past participle is a form of verbs that, if formed regularly, has the form of "stem+ed".
The past participle of "tangle" is "tangled" and the sentence with the past participle is:
I stepped into the middle of the tangled vines.
(actually the last sentence also has a past participle in it, but not only, so I am not choosing it).
c. because answer A is irrelevant because the piece of evidence is about how to count not about rocks. Answer B is also irrelevant because there is no proof that wind-wolf was forced to work instead of helping out. answer D has nothing to do with any of it because the evidence is about counting not that he is unhappy or wants to learn differently.