Answer:
A.
Explanation:
The demand for some of products have a relationship, where the quantity demanded for one product depends somehow on the prices of both.
If two goods are substitutes, an increase in the price of one increases the demand of the other.
The demand for brand A depends on its price and also in the price of its main competitor.
In this case, shotgun-shell and shotgun-shell ammunition are substitutes.
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Answer:
marketability is not correct
Explanation:
Four characteristics of service are;
intangibility,
inseparability,
variability and.
perishability.