Select the option which shows the line number where definite iteration is first used in the algorithm shown in Figure 1.

Figure 1

1      attempts ← 0
2      connected ← False
3      WHILE connected = False AND attempts < 5
4          attempts ← attempts + 1
5          IF TRY_CONNECT() = True THEN
6              connected ← True
7          ENDIF
8      ENDWHILE
9      IF connected = True THEN
10         FOR i ← 1 TO 3
11             SEND_PING()
12         ENDFOR
13     ELSE
14         LOG_ERROR('Connection failed')
15     ENDIF