OK so for your answer the best option to go with will be option D. because absorption does not have the meaning to do something again it is just saying to absorb as the rest have the beginning re meaning to do again.
He missed the sights, smells and sounds of his own neighborhood.
<u>Explanation</u>:
- Colin had travelled a half-way around the world and he didn't have a hard time. He had been wondering who might he would become after those travels.
- But he longed for his home, his real home in England. He missed his friends, sights, smells and sounds of his neighborhood. Before the thought of joining the conversation with the guide,he thought of this in his mind.
The best example of a primary source among these options that you've mentioned is an interview with her dad who is a Vietnam veteran. She can get all the details she needs from a person who was actually there.
