IKMC 2027 - Grades 3-4 - Self-study SET 1 - Thematic Batch 3 Question 5

Geoff goes to the cinema with his father. They sit in seats 71 and 72. The sign below gives directions to the seats.
Which arrow should Geoff and his father follow?
The five rows of the sign direct seats 1–20, 21–40, 41–60, 61–80 and 81–100, from top to bottom.