Which of the following statements about the status of a work queue is/are correct?

1. The status can be used as a method of recording what work has been done so far on a Work Queue item

2. The status is set using the Update Status action of the Work Queues business object

3. Every time the Update Status action is executed, the existing status is appended. Each status is separated with a semi colon.

4. The status can be used to aid manual working of exceptions; providing the Item Status can inform staff what work is still outstanding on an item that needs manually completing