Instruction: Rank the items in options and predict the user's next purchase from the listed options by analyzing her historical purchases.

Input:
1st: Pyle Megaphone Speaker PA Bullhorn - Built-in Siren 40 Watts Adjustable Vol Control & 1000 Yard Range - Football Soccer Baseball Hockey Basketball Cheerleading Fans...
2nd: Esbit Emergency Stove. Sports & Outdoors. Outdoor Recreation. Esbit.
3rd: Emopeak Men Running Socks 5 Pack Compression Socks, MiQ Range Fashion Luxury Business Sports Men's Socks. Sports & Outdoors. Sports & Fitness. Emopeak.
4th: DATREX Emergency Food Ration Bars for Disaster or Survival, 2400 Calories per Pack of 12 Bars. Sports & Outdoors. Outdoor Recreation. Datrex.

Options:
A: eVGA e-GeForce 8800 GTX 768 MB PCI-Express Graphics Card. Electronics. Computers & Accessories. EVGA.
B: Mark Richards Wear'm? 150 Jute Tote Bag, Small. Home & Kitchen. Kitchen & Dining. Mark Richards Wear'm?.
C: Godinger 14-1/8" x 11" Rectangular Tray. Home & Kitchen. Kitchen & Dining. Godinger.
D: Dog Owner Gifts Best Chihuahua Mom Ever Paw Pattern Gift Coffee Mug Tea Cup Bone Pattern. Home & Kitchen. Kitchen & Dining. ThisWear.
E: Delphi XM Roady XT Satellite Radio Receiver. Electronics. Car & Vehicle Electronics. Delphi.
F: LaCie d2 Quadra v3 USB 3.0 7200RPM 3 TB 301549U. Electronics. Computers & Accessories. LaCie.
G: Nearly Natural 5319 Bamboo Palm Silk Tree, 5-Feet. Home & Kitchen. Home Dcor. Nearly Natural.
H: Granite Gear Blaze AC 60 Backpack. Sports & Outdoors. Outdoor Recreation. Granite Gear.
I: A-TECH 16GB KIT (2 x 8GB) For Dell Optiplex 9010 (Desktop) 9010 (Mini Tower) 9010 (Small Form Factor) 9010 (Ultra Small Form Factor). DIMM DDR3...
J: Spectrum Diversified Ashley 2-Tier Server, Satin Nickel. Home & Kitchen. Kitchen & Dining. Spectrum Diversified.
K: Keurig B30 Mini Personal Single-Serve Brewing System, White. Home & Kitchen. Kitchen & Dining. Keurig.
L: Hamilton Beach Keep Warm 2-Slice Toaster (22811). Home & Kitchen. Kitchen & Dining. Hamilton Beach.
M: Lake Placid Girls Nitro 8.8 Adjustable Ice Skates. Sports & Outdoors. Outdoor Recreation. Lake Placid.
N: Gregory Mountain Products Sketch 8 Liter Daypack | Business, Travel, Commute | Padded Shoulder Strap, Durable Construction, Built in Organization Options. Sports & Outdoors. Outdoor...
O: MeMe Red Wine Aerator Pourer Wine Decanter. Home & Kitchen. Kitchen & Dining. MeMe.
P: Good Cook Plastic Bowl, 6-Quart, colors may vary. Home & Kitchen. Kitchen & Dining. Good Cook.
Q: Swann DIY Security Camera (Color). Electronics. Camera & Photo. Swann.
R: BladesUSA WS-1WH Sword Stand Single Wall Mount Sword Stand. Sports & Outdoors. Sports & Fitness. BladesUSA.
S: Whitmor GRADE A Natural Wood Suit Hangers (Set of 16). Home & Kitchen. Storage & Organization. Whitmor.
T: KitchenAid 9-Cup Food Processor Multipurpose Blade. Home & Kitchen. Kitchen & Dining. KitchenAid.
Answer: R