To solve this question, the user needs to have knowledge about aggregate functions in SQL.

Aggregate functions are used to perform calculations on a set of values to return a single value.

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

A. COUNT: This is a valid aggregate function in SQL. It returns the number of rows that match a specified condition.

B. SUM: This is a valid aggregate function in SQL. It returns the sum of a set of values.

C. COMPUTE: This is not a valid aggregate function in SQL. There is no such function as COMPUTE in SQL.

D. MIN: This is a valid aggregate function in SQL. It returns the minimum value of a set of values.

Therefore, the answer is:

The Answer is: C