To solve this question, the user needs to understand the functions used in the SQL query:

• MOD: returns the remainder of a division operation
• TRUNC: truncates a number to a specified number of decimal places
• ROUND: rounds a number to a specified number of decimal places

Now, let's evaluate the given query step by step:

• MOD(1600,10) returns the remainder of 1600 divided by 10, which is 0.
• TRUNC(0,-1) truncates 0 to the nearest 10th place, which is still 0.
• ROUND(0,2) rounds 0 to 2 decimal places, resulting in 0.

Therefore, the correct answer is:

The Answer is: A. 0