Instruction: Rank items in listed options based on the user's purchase history to determine the item that the user is most likely to purchase next. Output the item with the highest likelihood of being the next purchase.

Input:
1st: WD Elements 2 TB USB 2.0 Desktop External Hard Drive. Electronics. Computers & Accessories. Western Digital.
2nd: Square Perfect 4001 SP1700 Rolling Camera Case Backpack for Digital Photo and Video Cameras. Electronics. Camera & Photo. SQUARE PERFECT.
3rd: Neewer Metal 13-21-31mm AF Auto Focus Macro Extension Tube Set for Canon DSLR Cameras Such as 7D Mark II,5D Mark II III,IV,1300D,1200D,1100D,750D,700D,650D,600D,550D,500D,100D,80D,70D,60D. Electronics. Camera &...
4th: Memorex 16X DVD-R 100-Pack Spindle. Electronics. Accessories & Supplies. Memorex.

Options:
A: Oven / BBQ Fork Meat Thermometer by Treasure Cove. Home & Kitchen. Kitchen & Dining. Treasure Cove.
B: Smith & Wesson M&P Shield Pro Carry LT CCW IWB Leather Gun Holster Black. Sports & Outdoors. Sports & Fitness. Pro Carry.
C: Maui Jim Spartan Reef Sunglasses. Sports & Outdoors. Outdoor Recreation. Maui Jim.
D: Mohawk Printed Slice Scatter Rug, Grape Impressions Tuscan. Home & Kitchen. Home Dcor. Mohawk Home.
E: DELL PowerEdge R710 2 x 2.53Ghz E5540 Quad Core 72GB 6x 1TB 6i 2PS. Electronics. Computers & Accessories. Dell.
F: Lorell High-Back Multi-Task Chair, 26-7/8 by 26 by 39-Inch to 42-Inch-1/2-Inch, Gray. Home & Kitchen. Furniture. Lorell.
G: Universal Rugs 105202 Ivory 8x10 Area Rug, 7-Feet 6-Inch by 9-Feet 10-Inch. Home & Kitchen. Home Dcor. Universal Rugs.
H: Aero Precision Ultralight 30mm Scope Mount, Standard, Anodized Black. Sports & Outdoors. Sports & Fitness. Aero Precision.
I: W&S Corrective Nearsighted UV Protective Anti-Flog Mirrored Swimming Goggles with Adjustable Strap ear plugs and three different size of nose bridge. Sports & Outdoors. Sports...
J: Schott Zwiesel Tritan Crystal Glass Stemware Diva Collection Bordeaux, 20-Ounce, Set of 6. Home & Kitchen. Kitchen & Dining. Schott Zwiesel.
K: Coo Candles Electric Candle Wax Melt Warmer or Oil Burner Lamp Combo - Bonsai (1). Home & Kitchen. Home Dcor. Coo Candles.
L: MIDEA INTERNATIONAL TRADING CO Pelonis Oscillating Digital Fan Heater. Home & Kitchen. Heating, Cooling & Air Quality. MIDEA INTERNATIONAL TRADING CO.
M: Kurt S Adler Doctor Who Blue Dalek Robot Figural Ornament. Home & Kitchen. Home Dcor. Kurt Adler.
N: PUMA Women's 6-Pack Cotton-Blend Low-Cut Socks. Sports & Outdoors. Sports & Fitness. PUMA.
O: Jabsco 45490-1000 Marine Waste Tank Y-Valve,Black. Sports & Outdoors. Sports & Fitness. Jabsco.
P: Enesco Disney Showcase Queen Elsa Couture de Force Stone Resin Figurine. Home & Kitchen. Home Dcor. Enesco.
Q: ErgoGrip the Universal Comfort Grip for iPads and Tablets. Electronics. Portable Audio & Video. Ergo Grip.
R: Under Armour Men's Silicone Belt. Sports & Outdoors. Sports & Fitness. Under Armour.
S: iPad Air Case, vogue Shop [Shockproof] Rugged Hybrid Protection Bumper Cover for Apple iPad Air 1 (iPad 5) 2013 Model for kids-Black. Electronics. Computers &...
T: Memorex DVD-R 4.7GB Multipack 2 - 100 Pack Spindles, 200 discs total. Electronics. Accessories & Supplies. Memorex.
Answer: T