Select one option to show which programming technique is used on line 3 of the algorithm in Figure 1.

Figure 1

1  OUTPUT 'Enter your age:'
2  age ← USERINPUT
3  IF age < 18 THEN
4      OUTPUT 'Child ticket assigned'
5      ticket_price ← 5
6  ELSE
7      OUTPUT 'Are you a student?'
8      is_student ← USERINPUT
9      IF is_student = 'yes' THEN
10         OUTPUT 'Student ticket assigned'
11         ticket_price ← 8
12     ELSE
13         OUTPUT 'Standard ticket assigned'
14         ticket_price ← 12
15     ENDIF
16 ENDIF