Answer:
memory
Explanation:
This is because she has an existing memory of chairs. She has a previous knowledge of furniture (tables, chairs, ...)
I think the best answer will be c because everyone knows how he spends time
The gifts because the old man took his stuff and gave it back to him, to pretty much in a way say " it's okay"
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It solves the possible unbalance in value of one part of the trade over the other.
