Asubset of brands from a particular product category that becomes the focal point of a consumer's evaluation is an:
a. evaluative set.
b. consideration set.
c. brand focus.

b. consideration set.

Explanation:

Consideration set by definition "is the subset of brands that consumers evaluate when making a purchase decision. Usually consumer has a limited information processing abilities and limits the comparison to a subset of brands that is termed as consideration set".

Evaluative criteria or set occurs "when a customer selects a different product, than the one they originally had in mind, by some resons like quality, price etc".

Brand Focus "is dedicated to provide our Clients with result-oriented advertising. We support our Clients to reach and compete in the global market".

And as we can see the definition that adjust to this problem is consideration subset since the consumers needs to evaluate that a given product is useful and they decide to buy and use the product.

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