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

Input:
1st: BlackRapid RSD-1BB Double (DR-1 Double Strap) (Black). Electronics. Camera & Photo. BlackRapid.
2nd: Nikon EN-EL4a Rechargeable Li-Ion Battery for MB-D10 Battery Pack and Nikon D2 and D3 Digital SLR Cameras - Retail Packaging. Electronics. Camera & Photo. Nikon.
3rd: Nikon 200-500mm f/5.6E ED AF-S VR Zoom NIKKOR Lens - U.S.A. Warranty - Bundle with 95mm Filter Kit, Flex Lens Shade, Cleaning Kit, Cap Leash,...
4th: IZON 2.0 Stem Wi-Fi Video Monitor Surveillance for iOS 5.0+ and Android 4.2+. Electronics. Security & Surveillance. Stem Innovation.

Options:
A: RuiLing 4-Pack Extra large Size 5.2 Inch Premium Heavy-Duty Genuine Solid Polished Stainless Steel S Shaped Hooks Heavy tool Hanging Hooks for Bathroom,office, wardrobe,Storage room,Workshop...
B: Start Today Double-Walled Insulated Glass Travel Mug with Lid- 15 OZ. Home & Kitchen. Kitchen & Dining. StartToday.
C: MacBook 12 Sleeve, Snugg - Red Leather Sleeve Case Protective Cover for MacBook 12. Electronics. Computers & Accessories. Snugg.
D: Vencer Makeup Brush Holder Organizer | 3 Slot Cosmetics Brushes Storage Solution,Black,VMO-011. Home & Kitchen. Bath. Vencer.
E: Pegasus Home Fashions Ultra Soft Sherpa Reversible Microplush Blanket, King Size, Sage. Home & Kitchen. Bedding. Pegasus Home Fashions.
F: Sinceda 12.5 Inch Modern Non Ticking Silent Quartz Analog Digital Wall Clock. Home & Kitchen. Home Dcor. Sinceda.
G: SLEEP TITE ENCASE Box Spring Protector - Six-Sided Zipper Encasement - Eliminates Bed Bugs - 100% Waterproof-Eliminates Dust Mites -15 Year Warranty, CAL KING. Home...
H: TekNmotion Airhead 1000 Wireless Headset for MAC & PC (TM-AIR100A). Electronics. Computers & Accessories. TekNmotion.
I: Zojirushi SN-XAE80XA Stainless Steel Thermal Vacuum Cooking Pot, 2-Gallon. Home & Kitchen. Kitchen & Dining. Zojirushi.
J: MEAT HEAT Stainless Steel Fold Out Food Probe Digital Meat Thermometer. Home & Kitchen. Kitchen & Dining. MEAT HEAT.
K: Iron Bull Strength Advanced Dip Belt - Dip Pullup Squat Multifunction Versatile Weight Belt Lifting. Sports & Outdoors. Sports & Fitness. Iron Bull Strength.
L: Elephant With Butterflies (#2) Upcycled Vintage Dictionary Art Print 8x10. Home & Kitchen. Wall Art.
M: WinCraft NFL Perfect Cut Color Decal. Sports & Outdoors. Fan Shop. WinCraft.
N: AudioQuest DragonTail USB Adaptor For Android Devices USB A (Female) To Micro USB (Male). Electronics. Accessories & Supplies. AudioQuest.
O: DSTE Replacement BL-3 Battery Chamber Cover For Nikon EN-EL4 EN-EL4a Li-ion Battery D300 D300S D700 D900 Camera MB-D10 MB-40 Grip. Electronics. Camera & Photo. DSTE.
P: Vello TTL-Off-Camera Flash Cord for Canon EOS - 1.5' (0.5 m). Electronics. Camera & Photo. Vello.
Q: Calphalon 3-Piece Wood Spoon Set. Home & Kitchen. Kitchen & Dining. Calphalon.
R: Columbia Men's Watertight Packable Rain Jacket. Sports & Outdoors. Outdoor Recreation.
S: ArtToFrames 8x8 inch Walnut Stain on Oak Wood Picture Frame, WOM0066-80206-YWAL-8x8. Home & Kitchen. Home Dcor. ArtToFrames.
T: Progo 2 Battery and Charger Kit For Canon LP-E5, Canon EOS Rebel XS, Rebel T1i, Rebel XSi, 1000D, 500D, 450D, Kiss X3, Kiss X2, Kiss...
Answer: O