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: IST Deep sea scuba diving military fins - rubber rocket. Sports & Outdoors. Outdoor Recreation. IST.
2nd: Castelli Lycra Arm Warmer. Sports & Outdoors. Outdoor Recreation. Castelli.
3rd: Tenn Mens Coolflo 8 Panel Padded Cycling Shorts. Sports & Outdoors. Outdoor Recreation. Tenn-Outdoors.
4th: Castelli Lycra Leg Warmer. Sports & Outdoors. Outdoor Recreation. Castelli.
5th: AERO|TECH|DESIGNS Big Man's Colossal Cycling Big Guy Bike Jersey with Back Pockets and Wicking Fabric Made in USA. Sports & Outdoors. Outdoor Recreation. AERO|TECH|DESIGNS.
6th: Canari Cyclewear Women's Pro Gel Short Padded Cycling Short. Sports & Outdoors. Outdoor Recreation. Canari Cyclewear.
7th: Canari Cyclewear Men's Pro Elite Gel Cycle Tight . Sports & Outdoors. Outdoor Recreation. Canari Cyclewear.
8th: CDEAL Bicycling Cycling Padded Knicks Shorts. Sports & Outdoors. Outdoor Recreation. CyclingDeal.

Options:
A: Buffalo MiniStation Air USB 3.0 Wireless 1 TB Portable Hard Drive (HDW-PD1.0U3). Electronics. Computers & Accessories. BUFFALO.
B: BOGEN 3265 GRIP ACTION BALL HEAD WITH QUICK RELEASE PLATE. Electronics. Camera & Photo. Manfrotto.
C: 4 Nighthawk Glow in Dark LED Light Up Golf Balls Official Size Weight Constant On. Sports & Outdoors. Sports & Fitness. NightHawk.
D: TiVo TCD658000 HD XL Digital Video Recorder (2008 Model). Electronics. Television & Video. TiVo.
E: BLACK+DECKER CWV9610 Dustbuster 9.6-Volt Wet and Dry Cordless Hand Vac. Home & Kitchen. Vacuums & Floor Care. BLACK+DECKER.
F: 42791455-WM-AYN. Home & Kitchen. Bedding.
G: Crystalo - Selenite Skyscraper (1pc) - ~ 4 Inch Tall. Home & Kitchen. Home Dcor. Crystalo.
H: KITCHENMATE Stainless Steel Measuring Cups - Set Of 4. Home & Kitchen. Kitchen & Dining. Litchenmate,Smith & Doyle Inc.
I: Lenovo ThinkCentre M58 Desktop with Intel Core2 Duo 3.0 GHz Processor, 8GB RAM, 2 TB Hard Drive DVD-ROM, Windows 10 Pro (Certified Refurbished). Electronics. Computers...
J: GUMA Vintage Bathroom Wall Mount Finish Soap Dish Holder Solid Brass Shower Hardware (ORB #4). Home & Kitchen. Bath. GUMA.
K: Allen New Generation Bow Tuning Kit. Sports & Outdoors. Sports & Fitness. Allen Company.
L: North American Arms Black Widow Oversized Grip - Also Fits Magnums, Mini-Master, Pugs & The Earl GMM-B. Sports & Outdoors. Sports & Fitness. North American...
M: Yamaha RX-V871BL Network AV Receiver (Discontinued by Manufacturer). Electronics. Home Audio. Yamaha Audio.
N: Pentek R50 Pleated Polyester Filter Cartridge, 9-3/4" x 2-5/8", 50 Microns. Home & Kitchen. Kitchen & Dining. Pentek.
O: Aurum Cables 5-pack 3.5mm to 3.5 mm Stereo Audio Coupler Adapter - Female to Female. Electronics. Accessories & Supplies. Aurum Cables.
P: Planet Bike Borealis cycling gloves. Sports & Outdoors. Outdoor Recreation. Planet Bike.
Q: Wheeler 1" Scope Mounting Kit with Storage Case . Sports & Outdoors. Sports & Fitness. Wheeler.
R: Ganz Sea Turtle Car Charm. Home & Kitchen. Home Dcor. Ganz.
S: Shoulder Holster for Springfield XD 9mm, XD 40, XD 45 with 4" Barrel. Sports & Outdoors. Sports & Fitness. Federal Holsterworks.
T: Aduro ROTATA 360 Degrees Rotating Case Cover Folio w/Stand for Apple iPad Mini / 2/3 (Cabana). Electronics. Computers & Accessories. Aduro.
Answer: P