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

Input:
1st: HDE Plastic Hard Case and Keyboard Cover for MacBook Pro 13 Inch Retina Display (Models: A1425/A1502). Electronics. Computers & Accessories. HDE.
2nd: HDE Plastic Hard Shell Case and Keyboard Cover for MacBook Pro 13 with Retina Display (Models: A1425/A1502), Gold. Electronics. Computers & Accessories. HDE.
3rd: HDE Plastic Hard Shell Case and Keyboard Cover for MacBook Pro 13 with Retina Display (Models: A1425/A1502), Pink Flowers. Electronics. Computers & Accessories. HDE.

Options:
A: Chicago Blazer Junior Girls Adjustable Inline Roller Skate. Sports & Outdoors. Outdoor Recreation. Chicago Skates.
B: USB Type C Travel Power Plug Adapter - 4 USB Ports (3 USB Type A + 1 USB Type C) Wall Charger - for Type...
C: Atomos USB 3.0 & 2.0 Docking Station with Split USB Cable. Electronics. Computers & Accessories. Atomos.
D: Cygolite Trion 1300 Bicycle Headlight. Sports & Outdoors. Outdoor Recreation. Cygolite.
E: UGREEN DVI 24+5 VGA Adapter DVI I Male to VGA HD15 Female Adapter Converter with 1080P DVI to VGA for Computer, PC Host, Laptop, Graphics...
F: Aerb Self-portrait Handheld Monopod Extendable Selfie Stick w Built-in Bluetooth Remote Shutter, Adjustable Phone Holder Mount for iPhone , Samsung , and More. Electronics. Computers...
G: Kurt Adler Karate Girl Christmas Ornament. Home & Kitchen. Home Dcor. Kurt Adler.
H: Fire 7 2015 Case, Cellularvilla [Multi-angle] Premium Pu Leather 360 Degree Rotating Flip Cover Swivel Stand Protector Case for Amazon Kindle Fire 7 inch Tablet...
I: CHARGE CAP USB LED headlamp BEANIE - Activewear LED headlamp. Remove + Recharge bright LED lights, NO BATTERIES TO REPLACE, LED Beanie hat. Sports &...
J: Deluxe Men's Cruiser Bike with Basket and Beverage Holder. Sports & Outdoors. Outdoor Recreation. Huffy.
K: ChargerCity 12v Car Charger Adapter Cord for Garmin Nuvi 2300 2350 2360 2370 2450 2460 2490 LMT LM LT T GPS Navigator Series w/Free ChargerCity®...
L: Aurum Cables - Pack of 3 High Speed HDMI Cable 2.0 with Ethernet - Supports 3D & Audio Return Channel [Latest Version] - 9 Feet...
M: Digipower BP-LPE5 Replacement Li-ion Battery for Canon LP-E5. Electronics. Camera & Photo. DigiPower.
N: Fintie Samsung Galaxy Tab 4 7.0 Case - Ultra Slim Lightweight Smart Shell Standing Cover for Samsung Tab 4 7.0(7-Inch) Tablet (WILL NOT Fit Samsung...
O: HDE Plastic Hard Shell Case and Keyboard Cover for MacBook Pro 13 with Retina Display (Models: A1425/A1502), Orange. Electronics. Computers & Accessories. HDE.
P: SnugPak Left Hand Zip Jungle Bag. Sports & Outdoors. Outdoor Recreation. SnugPak.
Q: EBBQ Wanna B Outdoors Bowstix Bow Bipod. Sports & Outdoors. Sports & Fitness. EBBQ.
R: Chicago Cutlery Forum 8-Piece Knife Set with Block. Home & Kitchen. Kitchen & Dining. Chicago Cutlery.
S: Duck House NFL Unisex Novelty Drinkware. Sports & Outdoors. Fan Shop. Duck House.
T: 3.5mm RCA Audio Video AV Cable for iPod. Electronics. Accessories & Supplies. ElectricsCenter.
Answer: O