The correct answer is D because Few-shot prompting involves providing the LLM with a few examples of the expected input-output format. This helps the model learn and mimic the pattern or structure required in the response — such as generating product descriptions that follow a specific template.

From AWS documentation:

"Few-shot prompting helps guide the model to produce structured and domain-specific outputs by supplying a small number of example inputs and corresponding outputs."

Explanation of other options:

A. Zero-shot prompting provides no examples, which may lead to inconsistent formatting.

B. Chain-of-thought prompting is used to guide reasoning steps, not formatting.

C. One-shot prompting uses a single example, but few-shot typically yields better structure adherence.

Referenced AWS AI/ML Documents and Study Guides:

AWS Prompt Engineering Guide

Amazon Bedrock Developer Documentation – Prompting Techniques

AWS ML Specialty Study Guide – LLM Prompting Patterns