Answer:
2. An early morning in a forest
Explanation:
They aren't at the castle he said "I saw you at the castle" They are looking for a oak tree they aren't there yet. It wouldn't have been a long time ago on the balcony.
Post hoc states that one event led to the following event that came after it. Since event B came after event A, event A caused event B.
This is fallacy because there are things such as coincidences, and an event coming after one doesn't mean they have to be related in any way.
I would say A, and I think you mentioned Independence, but if you didn't then it is D
The narrator meets the Medical Man at the Linnaean Society in the city. The Medical Man thinks the Time Machine thing was a trick, but he can't figure out how the Time Traveller did it. The narrator goes back the following week for the Time Traveller's weekly dinner party.