Given the following code snippet, what line is executed immediately after line 7?

```
1. var x = 1; var count = 20; var timer;
2. function countIt()
3. {
4. count = count – x;
5. document.write(count);
6. }
7. timer = setTimeOut('countIt()', 2000);
8. document.write("Count down: ");
```

a. line 1
b. line 2
c. line 4
d. line 8

b. line 2