Final answer:
Functional obsolescence is due to outdated features of a product, not external factors like proximity to nuisances. Styles, designs, and floor plans can become obsolete, but nuisances are unrelated. Planned obsolescence is a business strategy where products are designed to need replacing.
Step-by-step explanation:
Functional obsolescence refers to the reduction of an object's usefulness or desirability due to an outdated design feature that cannot be easily altered or updated. In the context of the question, 'Which of the following is not attributed to functional obsolescence?', the presence of obnoxious nuisances (proximity of obnoxious nuisances) is not related to the inherent functionality or design of an item. Instead, it pertains to external environmental factors. Examples of functional obsolescence include outdated style and design, as well as non-functional floor plans. In the practice of planned obsolescence, which the garment industry's use of non-durable nylon stockings exemplifies, products are designed to become obsolete, pushing consumers to purchase replacements. Moreover, the technology sector often counts on devices failing after a certain period to prompt consumers to buy new models.