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: Monstrum Tactical 90 Lumens LED Flashlight with Rail Mount and Detachable Remote Pressure Switch. Sports & Outdoors. Sports & Fitness. Monstrum Tactical.
2nd: HAZARD 4 Ditch(TM) Laptop Soft-Briefcase/Go-Bag w/MOLLE by (R).  HAZARD 4.
3rd: BlackBeltShop Solid Rank Karate Martial Arts and TaeKwonDo Belts. Sports & Outdoors. Sports & Fitness. BlackBeltShop.
4th: HAZARD 4 Tonto(TM) Concealed-Carry Mini-Messenger Bag w/MOLLE by (R). Sports & Outdoors. Sports & Fitness. HAZARD 4.

Options:
A: Home Essentials & Beyond 3126 Home Essentials Set of 3 Apothecary Jars, 12, 15, 16, 12,15, Clear. Home & Kitchen. Kitchen & Dining. Home Essentials...
B: Bose Companion 2 Series I Multimedia Speaker System (Black). Electronics. Computers & Accessories. Bose.
C: Sony In Ear Stereo Headset Headphones with Microphone for Sony Xperia Z, Xperia ZL, Xperia V & Other 3.5mm Devices (Bulk Packaging) - Black. Electronics...
D: Zomei® Square Z-PRO Series Filter Holder Support + Adapter Ring 77mm. Electronics. Camera & Photo. GadgetCenter.
E: eForcity 1300mAh Battery and Screwdriver Kit for 4GB/6GB iPod mini. Electronics. Portable Audio & Video. eForCity.
F: Laid Back CS1409 Men's Old Person Birthday Vintage Dude Tankard, 14 oz, Multicolor. Home & Kitchen. Kitchen & Dining. Laid Back.
G: GE Power Pro X500-BK 16 MP with 15 x Optical Zoom Digital Camera, Black (OLD MODEL). Electronics. Camera & Photo. GE.
H: Rosle USA 12915 Rösle Stainless Steel 9-inch One-Handed Locking Tongs, 9 inch. Home & Kitchen. Kitchen & Dining. Rosle.
I: RDX Tricep Rope Machine Attachment Cable | Rubber End Nylon Rope for Pull & Push Down Resistance Training | Multi Gym Fitness Workout Non Slip...
J: Mac Sports Gift Wrap Caddy. Home & Kitchen. Storage & Organization. MAC S P O R T S.
K: RAPDOM Tactical Wallet. Sports & Outdoors. Sports & Fitness. RAPDOM.
L: SkyTech Archangel GTX 750 Ti Gaming Computer Desktop PC FX-6300 3.50 GHz 6-Core, GTX 750 Ti 2GB, 8GB DDR3, 1TB HDD, 24X DVD, Wi-Fi USB,...
M: Uncle Mike's 53551 Side-Armor Series, Briefcase W/Holster, black. Sports & Outdoors. Sports & Fitness. Uncle Mike's.
N: SWIVIT PRO360 - 360 degree rotating multi-position mount for GoPro® and Garmin® Virb cameras and accessories. Electronics. Camera & Photo. SWIVIT.
O: SureFit  Scroll Wing Chair Slipcover, Brown. Home & Kitchen. Home Dcor. Surefit.
P: Maximum Strength Protector Pepper Spray Dog Attack Deterrent—All-Natural and Effective. Sports & Outdoors. Sports & Fitness. SABRE.
Q: Chicago Cutlery B144 / 1104670 4" Wood Handle Steak Knife Set Walnut Tradition (2-Pack). Home & Kitchen. Kitchen & Dining. Chicago Cutlery.
R: ZQXPP Z143 Tattoo Arm Sleeve Cover Cycling Sun Protective Arm Sleeves-1 Pair (34 Colors). Sports & Outdoors. Outdoor Recreation. ZQXPP.
S: BCP Pack of 6pcs Black Color TW MOLLE Web Dominators with Elastic string. Sports & Outdoors. Sports & Fitness. BCP.
T: 22/4 1000FT 22AWG GAUGE 4 SOLID CONDUCTOR UNSHIELDED WHITE CONTROL SECURITY BURGLAR ALARM WIRE SPEAKER CABLE. Electronics. Accessories & Supplies. LOGICO.
Answer: K