Explanation

Option C is the most effective prompt because:

• Explicit Format Specification: It explicitly requests "CSV format" which is a structured, tabular format that naturally organizes data into columns and rows
• Clear Column Definition: It specifically lists all required columns: "Customer ID, Rating, Feedback, and Timestamp"
• Standardized Structure: CSV format ensures consistent column headers and row-based data organization

Why other options are less effective:

• Option A: Vague about column names ("customer details") and uses generic terms ("time" instead of "Timestamp")
• Option B: Good but doesn't specify the output format, which could result in various table representations
• Option D: Requests a "summary" rather than structured data, which may not produce the required table format

Best Practices for Generative AI Prompts:

• Be specific about the desired output format (CSV, JSON, table)
• Explicitly list all required columns with exact names
• Specify the structure (rows and columns) when tabular data is needed
• Use standardized data formats for consistent results