In the accompanying figure, which number points to a sort option?

a. 1 b. 2 c. 3 d. 4

Depart Date Number of Days Seat Capacity 1 Tour Sort A to z 10 Sort z to A 10 60 200 Sort by Color 21 Clear Filter From Tour 50 Filter by Color 250 Text Filters 3 60 Search 700 Select Al) Down Under Exodus Hello Arkansas Mississippi Cruise Old Japan Pacific Odyssey Spyder Rally Toda in Washington OK Cancel