To solve this question, the user needs to know about the SMALLDATETIME data type and how to cast values to it.

In SQL Server, SMALLDATETIME is a data type that stores a date and time with a precision of one minute. It is represented as a two-byte signed integer.

The CAST function is used to convert one data type to another. In this case, the value -1 is being cast to the SMALLDATETIME data type.

Now, let's go through each option and explain why it is right or wrong:

A. 1900-01-01 00:00:00.000: This option is incorrect because the SMALLDATETIME data type has a minimum value of 1900-01-01 00:00:00. The value -1 is less than the minimum value, so it cannot be converted to a SMALLDATETIME.

B. 1899-01-01 00:00:00.000: This option is incorrect because the SMALLDATETIME data type has a minimum value of 1900-01-01 00:00:00. The value -1 is less than the minimum value, so it cannot be converted to a SMALLDATETIME.

C. 1752-01-01 00:00:00.000: This option is incorrect because the SMALLDATETIME data type has a minimum value of 1900-01-01 00:00:00. The value -1 is less than the minimum value, so it cannot be converted to a SMALLDATETIME.

D. The system will generate an error. Only positive integer values can be converted to a SMALLDATETIME data type: This option is incorrect because the SMALLDATETIME data type can store both positive and negative integer values. However, the value -1 is less than the minimum value of the SMALLDATETIME data type, so it cannot be converted to a SMALLDATETIME.

The Answer is: D