Final answer:
Option D ('Melody Magazine ran a lengthy profile of one of the world's most accomplished violinists.') is the correct answer as it represents a piece of writing that fits the definition of a profile, focused on mentioning significant details and providing inspiration through storytelling and factual reporting.
Step-by-step explanation:
The piece that uses the definition of profile is D) Melody Magazine ran a lengthy profile of one of the world's most accomplished violinists. This example showcases the concept of a profile as it relates to the genre of writing where the focus is primarily on a particular subject, providing insights and a new perspective that aims to inform and sometimes inspire the reader. A profile in this context is often a detailed representation of an individual, highlighting significant aspects of their character or achievements, typically informed by the techniques of narrative and reporting.
Profiles in the field of writing are notably different from psychological profiles provided in a court setting, as suggested in option B, or the mention of a person in passing as seen in options A and C. Instead, option D reflects the intent to offer a more comprehensive depiction of a person that encompasses storytelling, factual reporting, and written with a specific angle or focus in mind.