A. Number
B. Label
C. Character
D. none
“Character” is not a valid data type in Excel; while you can enter text characters, the recognized data type for text in Excel is typically called “Text” or “String” depending on the context.
Explanation: Excel recognizes data types like numbers, dates, times, currency, percentages, and logical values (TRUE/FALSE), but not a separate category specifically called “Character.”.
Key point: If you want to store text data in Excel, simply type the text directly into the cell, and it will be treated as a text data type.
The correct answer to the question: "________________________ is not a valid data type in excel?" is "Character".