Operator Variations are identified by which pattern?

• A. two digits followed by two alphanumeric characters
• B. two alphanumeric characters followed by a two digit number
• C. a letter followed by three digits
• D. a four-digit number

Answer: (B)

Operator Variations are identified by two alphanumeric characters followed by a two-digit number. The two-character alphanumeric prefix serves to identify the operator’s variation family, while the trailing two digits distinguish the specific variant within that family. This compact format (letters or digits at the start, then a numeric suffix) makes it easy to generate and recognize many variations. The other patterns don’t fit because they either start with digits, use the wrong mix of characters, or have the incorrect total length, so they wouldn’t reliably encode a variation in the same standardized way.