Instruction: Rank items in listed options based on the user's purchase history to determine the item that the user is most likely to purchase next. Output the item with the highest likelihood of being the next purchase.

Input:
1st: Serfas Bike Inner Tube. Sports & Outdoors. Outdoor Recreation. Serfas.
2nd: Eurosocks Patented Recovery Graduated Compression OTC Socks. Sports & Outdoors. Outdoor Recreation. Eurosocks.
3rd: Neo Sport 3MM & 5MM Premium Neoprene Five Finger Wetsuit Gloves with gator elastic wrist band. Use for all watersports, diving, boating, cleaning gutters, pond...
4th: ASICS Unisex Slider V. Kneepad. Sports & Outdoors. Sports & Fitness. ASICS.
5th: Promate 3mm Adjustable Beanie Scuba Dive Surf Surfing Kayak Rafting Canoe Snorkel Swimming Cap Hat. Sports & Outdoors. Outdoor Recreation. Promate.

Options:
A: Solaron Classic Beige Korean Thick Mink Plush Embossed King Size Blanket. Home & Kitchen. Bedding. Classico.
B: RockyMRanger Heavy Duty Boat Cover Trailerable Fishing Runabout Protector Outdoor. Sports & Outdoors. Sports & Fitness. RockyMRanger-Boat covers.
C: iPad 2 Case, iPad 3 Case, iPad 4 Case, AiSMei Rotating Stand Case Cover with Wake Up/Sleep For 9.7-Inch Apple iPad 2, iPad 3, iPad...
D: GunSkins Hunting Rifle Skin Camouflage Kit DIY Vinyl Wrap precut Pieces. Sports & Outdoors. Sports & Fitness. GunSkins.
E: Presto 09936 Pressure Cooker Sealing Ring/Overpressure Plug Pack. Home & Kitchen. Kitchen & Dining. Presto.
F: 16GB kit (8GBx2) Upgrade for a Apple MacBook Pro (13-inch, Early 2011) System (DDR3 PC3-10600, NON-ECC, ). Electronics. Computers & Accessories. Crucial.
G: iPad2 To HDMI Cable Adapter For Apple ,new version ipad connector, new ipad,iphon4S and ipad2 iSO 5.1 compatible, Connect iPad To HDTV Screen adapter with...
H: Sea Stones On the Rocks Granite 6-Piece Whiskey Chilling Stones Set with Two 10-Ounce Tumblers and Hardwood Presentation/Storage Tray. Home & Kitchen. Kitchen & Dining...
I: [iRhino] TM Black Heavy Duty rugged impact Dual Layer Hybrid Case cover with Build In Kickstand Protective Case For Samsung Tablet galaxy Tab A 8...
J: Prago Original Junior Jerky Gun. Home & Kitchen. Kitchen & Dining. Weston.
K: Godox 32"/80cm Umbrella Octagon Softbox, Studio Flash Reflector,Speedlight Octagonal Soft Box with Carrying Bag for Portrait or Product Photography (32 inch /80cm). Electronics. Camera & Photo...
L: Sony HDR-AS20/B AS20 AS20/B POV Action Cam with Wi-Fi/ NFC and 1080/ 60p HD + Sony C10 16GB microSDHC + Focus Multi Card Reader +...
M: mCover iPearl Hard Shell Case for 11.6" ASUS EeeBook X205TA Series/VivoBook E200HA Laptop - Blue. Electronics. Computers & Accessories. mCover.
N: SafeNet IDProve 700 OTP Card for use with Amazon Web Services Only. Electronics. Computers & Accessories. Gemalto.
O: Eurosocks 1212 Board Zone Sock. Sports & Outdoors. Outdoor Recreation. Eurosocks.
P: Ziotek ZT1212513 Power Strip Liberator Plus II, 5 Pack. Electronics. Accessories & Supplies. Ziotek.
Q: 15in1 Accessory Bundle Kit 4 iPod Touch 4G 4th Gen GirlFriend. Electronics. Portable Audio & Video. TsirTech.
R: Royal Bamboo Knot Cocktail & Hors' D'oeuvre Picks - Set of 100 size 4 Inch. Home & Kitchen. Kitchen & Dining. Royal.
S: Dainty Home Theater Fabric Shower Curtain, Ivory, 20" x 26"/Standard. Home & Kitchen. Bath. Dainty Home.
T: Star Wars Kids Character Chair Darth Vader Chair. Home & Kitchen. Furniture. Star Wars.
Answer: O