At his house, I suppose.
Because in the note, Xiao Bai mentioned that "请你回来以后给我打电话” （please call me when you get back)
In Korea they have their surname first then their given name. So basically yeah it would be Arias Victoria.
Only one firm selling all products in the market.
The absence of the substitutes of these suppliers.
The policy of unique product, i.e., absence of substitute the product sold by one firm,
Barriers to the entry and exit to the markets in terms of government, franchise, patents, copyrights, ownership.
Control of complete information e.g. secret formula.
The answer is B. Dolly
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