To answer this question, let's go through each option:
Option A) 1 - This option is the correct answer. The given SQL statement concatenates the values of the columns address1, address2, and address2 using the concatenation operator ||. The result is then aliased as "Adress" using the AS keyword. Therefore, the output of the query will be the concatenation of these three columns, separated by commas.
Option B) 2 - This option is incorrect. The given SQL statement does not involve any calculations or arithmetic operations. It simply concatenates the values of the specified columns.
Option C) 3 - This option is incorrect. The given SQL statement does not involve any calculations or arithmetic operations. It simply concatenates the values of the specified columns.
Option D) 4 - This option is incorrect. The given SQL statement does not involve any calculations or arithmetic operations. It simply concatenates the values of the specified columns.
The correct answer is Option A.