Which of the following options is not a data type?
Answer Details
"Valid data" is not a data type.
Data types are categories of data that define what type of values a variable can hold, such as alphabetic characters, numbers, or a combination of both (alphanumeric). The term "valid data" refers to data that meets certain criteria, such as being within a specified range, having a certain format, or being free of errors. But it is not a type of data in the same sense as alphabetic, alphanumeric, or numeric data.