Final answer:
A. Loyalty Martina is showing brand loyalty by only considering Macintosh laptops for purchase, due to her family's positive experiences with the brand.
Step-by-step explanation:
Martina is exhibiting brand loyalty. Brand loyalty occurs when a consumer repeatedly purchases the same brand due to their positive experience with it, often leading to a strong preference and commitment that excludes other brands.
In Martina's case, her family's satisfaction with Macintosh computers over the years has influenced her decision to exclusively consider Macintosh laptops as the best option for her college needs. This inclination demonstrates a deep-rooted trust and favoritism towards the brand,
which effectively dismisses the consideration of alternate brands regardless of their potential merits or offerings.