A clerk must proofread a form.
The original reads: 'Requisition #40827-B, Dept. of Revenue.' Which copy contains an error?
1.
Requisition #40827-B, Dept. of Revenue.
2.
Requisition #40872-B, Dept. of Revenue.
3.
Requisition #40827-B, Dept. of Revenue.
4.
Requisition #40827-B, Dept. of Revenue.