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

Figure 1

1      moisture ← USERINPUT
2      IF moisture < 30 THEN
3          cycles ← 4
4      ELSE IF moisture < 60 THEN
5          cycles ← 2
6      ELSE
7          cycles ← 0
8          OUTPUT 'Moisture level ok'
9      ENDIF
10     WHILE cycles > 0
11         RUN_PUMP('Zone A')
12         IF moisture < 15 THEN
13             RUN_PUMP('Zone B')
14         ENDIF
15         cycles ← cycles - 1
16     ENDWHILE