Deterioration is to objects as atrophy is to what?

The analogy presented in the question compares two processes of decline or loss. Deterioration refers to the physical decline in condition or quality of objects, such as cars, furniture, or buildings. Atrophy, on the other hand, specifically relates to the wasting away or decrease in size of body parts, most commonly associated with organs and tissues in biological contexts.

Choosing organs as the correct answer reflects an understanding of atrophy as it often occurs in muscles and various organs when they are not used, leading to a reduction in their size and function. This process can happen due to several reasons, including lack of physical activity, malnutrition, or certain medical conditions.

In contrast, the other options—cars, styles, and devices—do not have a direct connection to the biological concept of atrophy, as these can deteriorate or become outdated, but they do not necessarily "atrophy" in the same way that living tissues do. Therefore, organs are the most appropriate choice to complete the analogy.