Answer:
A) Purchasing power
Step-by-step explanation:
The answer here is quite simple because Canadians have an average GDP per capita US $46.233, while Mexicans GDP per capita is only US $9.673. Even though Mexico has a much larger population than Canada, the average Canadian has a much higher purchasing power than the average Mexican.
Home theater systems are not basic necessities, they can actually be considered luxury goods since a TV is a normal purchase but a whole home theater system is much more expensive. Luxury or expensive goods are generally sold in larger quantities where people have more money.
If the company decides to sell its product in Canada, they can sell it at a Walmart, but if they want to sell it in Mexico they would need to find upscale stores that would be willing to sell them to a small amount of wealthy customers.