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

Input:
1st: Koss 'The Plug' In-Ear Headphones (Black). Electronics. Headphones. Koss.
2nd: NETGEAR XE102 Wall-Plugged Ethernet Bridge. Electronics. Computers & Accessories. NETGEAR.
3rd: Cowon iAudio G3 2 GB MP3 Player with FM and Voice Recorders (Sky White). Electronics. Portable Audio & Video. Cowon.
4th: Belkin Nostromo Speedpad n52. Electronics. Accessories & Supplies. Belkin.
5th: Eyetv 250 Plus. Electronics. Television & Video. Elgato.
6th: Panasonic BL-PA100KTA Ethernet Adaptor Starter Pack Includes two HD-PLC (High Definition Power Communication). Electronics. Computers & Accessories. Panasonic.
7th: Logitech Pro 9000 PC Internet Camera Webcam with 2.0-Megapixel Video Resolution and Carl Zeiss Lens Optics. Electronics. Computers & Accessories. Logitech.
8th: WBT-201: Wintec WBT-201 Bluetooth Data Logger GPS Receiver (Auto on/off, WAAS, Bluetooth, USB, Push to Log, Data Logger with Google Earth Integration). Electronics. GPS, Finders...
9th: AGL3080: Amod AGL3080 GPS Data Logger (Windows and Mac Image Software included). Electronics. GPS, Finders & Accessories. Amod.
10th: Olympus VF-1 Optical Viewfinder for use with Olympus PEN and OM-D  Micro Four Thirds Digital Cameras. Electronics. Camera & Photo. Olympus.
11th: Xtrememac 02386 Incharge Sync Docking Station for iPod/iPhone/iPad. Electronics. Portable Audio & Video. XtremeMac.
12th: Ineo I-NA321UPLUS USB 3.0 to SATA III Hard Drive Docking Station for 2.5-inch and 3.5-inch HDD and SSD Up To 4TB. Electronics. Computers & Accessories...
13th: GreatShield Smart Cover Buddy Snap On Slim-Fit Case for New iPad 2012 Version / Apple iPad 2 (Satin Black). Electronics. Computers & Accessories. GreatShield.
14th: Anker® Uspeed USB 3.0 4-Port Hub with Power Adapter, Compatible with Windows XP / Vista / 7 / 8 Mac OS - Ultra Slim 0.5inch...
15th: WD My Book Thunderbolt Duo 6TB External Dual Hard Drive Storage with RAID. Electronics. Computers & Accessories. Western Digital.
16th: 3M Adjustable Laptop Stand, Raise Screen Height to Reduce Neck Strain, 3 Height Adjustment, Large Platform for Docking Station, Non-Skid Base Keeps Laptop Secure, Cable...
17th: Olympus MCG-2 BLK Camera Grip for Olympus E-P3 (Black). Electronics. Camera & Photo. Olympus.
18th: OP/TECH USA Soft Pouch Digital D-M 4/3 (Black). Electronics. Camera & Photo. OP/TECH USA.

Options:
A: Manual Woodworkers & Weavers Vanity Plates Throw Pillow, Texas, 14.5 x 9. Home & Kitchen. Bedding. MWW.
B: Ace Seller 3.5mm Male to 3.5mm Male Audio Cable Cord, 3.3-Feet, Black. Electronics. Accessories & Supplies. Ace Seller.
C: Carnation Home Fashions "Deck The Halls Fabric Shower Curtain. Home & Kitchen. Bath. Carnation Home Fashions.
D: BriaUSA Kids Baby Clothes Hangers Yellow Steel Hooks –Ultra Slim, Sturdy Saves You Extra Space – Set of 10. Home & Kitchen. Storage & Organization...
E: Five Oceans White Nylon Thru-Hulls with stud for hose, 1/2" FO-1866. Sports & Outdoors. Sports & Fitness. Five Oceans.
F: Ubiquiti Bullet M2 Titanium - Wireless Access Point - AirMax (BM2-TI(US)). Electronics. Computers & Accessories. Ubiquiti Networks.
G: Hogue Colt & 1911 Government Grips Coco Bolo. Sports & Outdoors. Sports & Fitness. Hogue.
H: Clear Acrylic Multi Purpose Makeup, Jewelry, Office Supplies Holder Organizer Case Storage Box. Home & Kitchen. Bath. MyGift.
I: Olympus M.Zuiko 9mm f8.0 Fisheye Body Cap Lens BCL-0980 for Micro 4/3 Cameras. Electronics. Camera & Photo. Olympus.
J: JACKYLED Pack of 50 8x12cm(3.15X4.72inches) Antistatic Bag Resealable Protective for Memory Card Earphone Small Electronic Device Anti Static Bag. Electronics. Computers & Accessories. JACKYLED.
K: 4TH Emotion Mr and Mrs 18 X 18 Inch Cotton Linen Home Decorative Throw Pillow Covers Cushion Cover Couple Love Pillow Case Set of 2...
L: Kate Aspen Love Beyond Measure Spoons, Heart Shaped Measuring Spoons, Stainless Steel. Home & Kitchen. Kitchen & Dining. Kate Aspen.
M: Norpro Grip-EZ Nonstick 13 Inch Splatter Screen Strainer. Home & Kitchen. Kitchen & Dining. Norpro.
N: Emivery 12 Pcs 84 Ft Thanksgiving Decorations Artificial Maple Leaves Garland Red Maple Ivy Vine Hanging Fall Garland. Home & Kitchen. Home Dcor. Emivery.
O: Francois et Mimi 800 Thread Count 100% Cotton Sheet Set, King, Brown. Home & Kitchen. Bedding. Francois et Mimi.
P: Stohlquist Rocker Personal Floatation Device. Sports & Outdoors. Sports & Fitness. Stohlquist Waterware.
Q: Arkon Portable Fold Up Tablet Stand for iPad and Tablet (TABSTS). Electronics. Computers & Accessories. ARKON.
R: Helinox Chair One Tactical Camp Chair Black One Size. Sports & Outdoors. Outdoor Recreation. Helinox.
S: Camel Commercial Hump Day Oval Magnet (Car or Fridge!) 3.75" X 5.75". Home & Kitchen. Kitchen & Dining. MBM.
T: Hy-Ko Products PP-1 Posted Private Property Tyvek Sign 10 PC Value Pack, 11" x 11", Yellow. Home & Kitchen. Home Dcor. Hy-Ko Products.
Answer: I