Instruction: The user's purchase history implies her preferences. Rank the items in the options based on the user's preferences. Output the item that the user is most likely to purchase next from the options.

Input:
1st: Rule H53SP-24 Marine Rule 1800 Pool Cover Pump with 24-Foot Cord/Wide Base (110-Volt, Colors may Vary). Sports & Outdoors. Sports & Fitness. Rule.
2nd: NcSTAR VISM Deluxe Padded Rifle Case with External Magazine Pockets. Sports & Outdoors. Sports & Fitness. NcSTAR.

Options:
A: LifeProof FRE iPad Mini/Mini 2/Mini 3 Waterproof Case - Retail Packaging - BLACK. Electronics. Computers & Accessories. LifeProof.
B: Delta Cycle Corp Bike Computer Caddy.  Delta Cycle.
C: Norpro 1223 Krona Stainless Steel Ladle, 12-Inch. Home & Kitchen. Kitchen & Dining. Norpro.
D: Bluetooth Audio Receiver Wireless Adapter for Home Audio Speakers/Stereos/Sound Bars/Surround Sound for Streaming Music and Other Audio From Smart Devices. Electronics. Portable Audio & Video...
E: BFG Ageia PhysX 128MB PCI Video Card. Electronics. Computers & Accessories. BFG Technologies.
F: Set of 12 Harvest Twist Napkin Rings. Home & Kitchen. Kitchen & Dining. Nicexx.
G: Tektro 316AG BMX Mini Brake Lever Pair Black/Silver. Sports & Outdoors. Outdoor Recreation. Tektro.
H: Homee Prime 24-Ounce Stainless Steel Cocktail Shaker, Double Jigger and Ice Tong with 50 Cocktail Recipes eBook. Home & Kitchen. Kitchen & Dining. HomeePrime.
I: Extra Large Hard Shell Carry Case For TomTom Start 60, Via 620, Go 600, Via 1605TM, Via 1605M 6" GPS. Electronics. GPS, Finders & Accessories...
J: Meat Market Value Pack | Halloween Decor. Home & Kitchen. Event & Party Supplies. Amscan.
K: NextBook Flexx9 9in 2-in-1 Tablet Intel Atom Z3735G 32GB W10. Electronics. Computers & Accessories. Nextbook.
L: Howard Miller 645-446 Monroe Table Clock. Home & Kitchen. Home Dcor. Howard Miller.
M: Koyal Wholesale Centerpiece Vase Filler Acrylic Crushed Ice, 2-Pound, Clear. Home & Kitchen. Event & Party Supplies. Koyal Wholesale.
N: Punt Surf Skimboard Traction Pad & Arch Bar - 3 Piece Stomp Track Pad for Skimboarding with Stickiest 3M Adhesive. For Ultimate Grip on Skim...
O: Household Essentials Single Line Retractable Clothesline with Coordinated Fashion Clothespins, Purple Dot. Home & Kitchen. Storage & Organization. Household Essentials.
P: Light Tan Brown Vintage Floral Bunting Fabric Banner Shabby Chic Triangle Pennant Garland Wedding Birthday Party Decoration. Home & Kitchen. Event & Party Supplies. ALLHEARTDESIRES.
Q: Generic New 14.0" HD Glossy Replacement LED LCD Screen for LG LP140WH4 (TL)(A1)/ LP140WH4-TLA1. Electronics. Computers & Accessories. Generic.
R: Vortex Optics Strikefire II Red Dot Sight - 4 MOA Red/Green Dot with Vortex Hat. Sports & Outdoors. Sports & Fitness. Vortex Optics.
S: LotFancy Black keyboard for HP Probook 4530s 4535s 4730s Series; P/N: 638179-001 MP-10M13US-930 6037B0056601 646300-001 ; Laptop / Notebook US Layout. Electronics. Computers & Accessories...
T: Kenable RJ11 Male Plug to 4 wire RJ45 Male Plug Flat Cable Lead 1m (~3 feet) BLACK. Electronics. Accessories & Supplies. Kenable.
Answer: R