A business had the following transactions, among others during May:

1 Paid \($2,000\) salary to a sales representative for time worked during May.

2 Paid \($500\) for petrol purchased for the delivery van during May.

3 Purchased a computer for \($2,500\) cash.

4 Paid \($14,000\) in settlement of a loan obtained three months earlier.

5 The owner withdrew \($400\) from the business for personal use.

6 Paid \($500\) commission to a salesman for work performed last March.

Required 

Which of the above transactions represented expenses incurred for January?