The correct answer is D. string.
A string is a sequence of characters, such as “Hello, world!”. It is a data type that can be used to declare a text of maximum 10 million.
A date is a data type that represents a specific day and time. It is not possible to declare a text of maximum 10 million using a date data type.
A long is a data type that represents a long integer. It is not possible to declare a text of maximum 10 million using a long data type.
A numeric is a data type that represents a number. It is not possible to declare a text of maximum 10 million using a numeric data type.