College students can be a less market segment because students' media habits are quite diverse and firms might have to use a wide variety of media to attract this segment.

reachable

Explanation:

Market segments constitutes market divisions or product of market segmentation whereby the market for goods and services is divided into various segments each holding together consumers that share certain characteristics rekevant for the product consumption. Characteristics such as lifestyle, needs, demography, common interest are all considered.

College students segmentation however involve young people with varied traits and habits and could be less predictable and challenging to get to.

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modern american cars are not available due to trade restrictions

answer; disconfirm the catharsis theory;