The only one making sense is the word 'hers'.
That bike is hers.
The answer is: A because the last paragraph shows that the couple did not share the baron's concerns. You were right
...very typical examples of a certain person or a thing. So, for example, Beowulf is the archetype of a hero, or Gandalf from the Lord of the Rings is the archetype of a mentor, etc.
Can you please add more detail to the question ?
Answer:
in the eleventh century, explorers embarked on difficult voyages in search of religion, wealth, and commonwealth