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: Guard Dog Diablo Tactical Stun Gun Flashlight, Maximum Voltage, Ultra Bright LED Bulb, Rechargeable. Sports & Outdoors. Sports & Fitness. Guard Dog Security.
2nd: Caldwell Stable Table with 360 Degree Rotation and Weatherproof Synthetic Top for Outdoor Shooting, Hunting and Cleaning. Sports & Outdoors. Sports & Fitness. Caldwell.
3rd: Guard Dog Diablo Tactical Stun Gun Flashlight, Maximum Voltage, Ultra Bright LED Bulb, Rechargeable. Sports & Outdoors. Sports & Fitness. Guard Dog Security.
4th: Mountainsmith Drift Lumbar Pack. Sports & Outdoors. Outdoor Recreation. Mountainsmith.

Options:
A: Fenwicks HMG Spinning Rods. Sports & Outdoors. Sports & Fitness. Fenwicks.
B: IMPERIAL EAGLE RUSSIAN COAT ARMS TEA GLASS METAL HOLDER CLASSIC GIFT KOLCHUGINO. Home & Kitchen. Home Dcor. RussianOrnaments.
C: Nokia 02734M2 BH-940 Purity Pro Wireless Stereo Headset by Monster - Retail Packaging - Red. Electronics. Headphones. Nokia.
D: Olympus WS-803 Voice Recorder Factory Refurbished. Electronics. Portable Audio & Video. Olympus.
E: Bosch Styline Stand Mixer with Continuous Shredder. Home & Kitchen. Kitchen & Dining. Bosch.
F: Red Vanilla FE900-415 Tuscan Villa Mugs, 14-Ounce, Set of 4. Home & Kitchen. Kitchen & Dining. Red Vanilla.
G: Boli 6 Pack Wholesale Space Saver Bag Vacuum Storage Bags - 1 Xlarge, 2 Large, 2 Med Combo and 1 Travel BagBL6001-6PK. Home & Kitchen...
H: Urbanest 3/4-inch Pinecone Adjustable Curtain Rod, 48-inch to 84-inch, Bronze. Home & Kitchen. Home Dcor. Urbanest.
I: FOUR-C Silicone Cup Cake Mold Shoes Fondant Mould Color Pink. Home & Kitchen. Kitchen & Dining. FOUR-C.
J: Pink Depression Glass Biscuit Jar in Mayfair Open Rose Pattern. Home & Kitchen. Kitchen & Dining. Miles Kimball.
K: Sapien Arms Airsoft Propane to Green Gas Adaptor with Silicon Oil . Sports & Outdoors. Sports & Fitness. Sapien Arms.
L: CoasterStone AS10080 Seashell Collection Absorbent Coasters, 4-1/4-Inch, Set of 4. Home & Kitchen. Kitchen & Dining. CoasterStone.
M: Dell 2HH3F Dual Port USB 3.0 PCIe Controller Card. Electronics. Computers & Accessories. Dell.
N: Mugzie Multi Color Sugar Skull Travel Mug with Insulated Wetsuit Cover, 16 oz, Black. Home & Kitchen. Kitchen & Dining. Mugzie.
O: FiveJoy Silicone Travel Bottle Set (60ml: White X 1, Orange X 1, Pink X 1) - Wide Opening: Easy to Fill, Flip Cap: Easy to...
P: Suunto Wrist-Top Computer Watch Replacement Strap. Sports & Outdoors. Sports & Fitness. Suunto.
Q: Cosmos Portable Waterproof Carrying Bag Handbag for 6.5 inches Two Wheels Self Balancing Smart Scooter Drifting Board.  Cosmos.
R: Osprey Packs Farpoint 40 Travel Backpack. Sports & Outdoors. Outdoor Recreation. Osprey.
S: LeFun 720p Wireless WiFi IP Pan Tilt Surveillance Camera with Two-Way Audio Remote Security System (Pack of 2). Electronics. Camera & Photo. LeFun.
T: JBL Duet III Premium High Performance Speaker System for Portable Music and PC - Black/Silver (Pair). Electronics. Computers & Accessories. JBL.
Answer: R