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

Input:
1st: PNY Optima 4GB (2x2 GB) DDR2 800 MHz PC2-6400 Desktop DIMM Memory Module Dual Channel Kit - MD4096KD2-800. Electronics. Computers & Accessories. PNY.
2nd: CM918W Astak CM-918W Security Camera (Silver). Electronics. Camera & Photo. Astak.

Options:
A: Fortune Candy Trash Can with Lid,Garbage Can for Barthroom or Office. Home & Kitchen. Storage & Organization. Fortune Candy.
B: Ultimate Arms Gear M1 M-1 Garand M1A M14 Rifle Steel Top Handguard Attaching Clip Remove Removal Installation Armorer's Tool Pliers. Sports & Outdoors. Sports &...
C: Nikon ES-1 52mm Slide Copy Adapter. Electronics. Camera & Photo. Nikon.
D: simplehuman Toilet Brush and Holder, Stainless Steel, Black. Home & Kitchen. Bath. simplehuman.
E: Columbia Sportswear Men's Bugaboo Suspender Pant. Sports & Outdoors. Outdoor Recreation. Columbia.
F: Buck Knives 0622BKX Endeavor Serrated Fixed Blade Knife. Sports & Outdoors. Outdoor Recreation. Buck Knives.
G: Serta RTA Astoria Collection 78" Sofa in Church Brick Tan, CR46237P. Home & Kitchen. Furniture. Serta.
H: PS3 USB HUB 4-Port With SD Card Reader. Electronics. Computers & Accessories. sunvalleytek.
I: Wusthof Grand Prix II 7-Piece Cutlery Set. Home & Kitchen. Kitchen & Dining. Wsthof.
J: The Pioneer Woman Vintage Speckle 20-Piece Blue Cookware Pans Pots. Home & Kitchen. Kitchen & Dining. Supportiback.
K: Foscam FI9821E POE Power Over Ethernet Megapixel HD 1280 x 720p H.264 Wired Pan/Tilt IP Camera with IR-Cut Filter - 26ft Night Vision and 2.8mm...
L: AU Optronics B156XW04 V.5 Laptop LCD Screen 15.6" WXGA HD LED (Compatible Replacement). Electronics. Computers & Accessories. AU Optronics.
M: Ultimate Arms Gear 10-40X50 Dual Red & Green Iluminated Tactical AOE Rangefinder Rifle Hunting Sniper Scope + 7/8" High Profile See-Thru Scope rings. Sports &...
N: Dell Latitude E6410 Laptop - Core i5 2.4ghz - 4GB DDR3 - 250GB HDD - DVDRW - Windows 10 Home 64bit - (Certified Refurbished). Electronics...
O: Knox Tabletop Hot/Cold Water Cooler and Instant Ice Maker. Home & Kitchen. Kitchen & Dining. Knox.
P: Jagwire Rocket Adjust II. Sports & Outdoors. Outdoor Recreation. Jagwire.
Q: Toshiba SD-2150 Dual Tray DVD Player. Electronics. Television & Video. Toshiba.
R: ASC Dual 12" Subwoofer Universal Fit Vented Port Sub Box Speaker Enclosure. Electronics. Car & Vehicle Electronics. American Sound Connection.
S: Shoreline Marine Propel Kayak Scupper Plugs (4 Pack). Sports & Outdoors. Outdoor Recreation. Shoreline Marine.
T: Klipsch RP-250F Tower Speakers (Piano Black). Electronics. Home Audio. Klipsch.
Answer: K