Final answer:
The question's multiple-choice options do not accurately reflect 'The Time Machine' by H.G. Wells. There is no physical proof provided to Filby or the others; it is the Time Traveller's story and disheveled appearance that are the only evidence presented.
Step-by-step explanation:
The quotation provided in the question does not actually pertain to 'The Time Machine' by H.G. Wells, but appears to describe a scene from another work. As for the proof that the time travel event happened in 'The Time Machine,' none of the options presented in the multiple-choice question (a piece of Weena's clothing, a stone from the forest, or wounds on his arm) constitute proof for Filby or the Time Traveller's other friends. In the actual story of 'The Time Machine,' the Time Traveller has no physical proof of his journey for his skeptical dinner guests; his return in a disheveled state and a story that can't be verified are all he offers. The crux of the narrative turns on the tension between belief and skepticism in the fantastic tale of time travel.