An automated irrigation system uses the algorithm shown in Figure 1 to decide how much water to dispense based on a moisture sensor input.
Figure 1
1 moisture ← USERINPUT
2 IF moisture < 20 THEN
3 cycles ← 5
4 ELSE IF moisture < 50 THEN
5 cycles ← 2
6 ELSE
7 cycles ← 0
8 OUTPUT 'No water needed'
9 ENDIF
10 WHILE cycles > 0
11 DISPENSE_WATER('100ml')
12 cycles ← cycles - 1
13 ENDWHILE
Select the option that shows the line number where iteration is first used in the algorithm.
Line number 2
Line number 4
Line number 10
Line number 11