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

Input:
1st: PentaxistDL 6.1MP Digital SLR Camera with DA 18-55mm f3.5-5.6 AL Digital SLR Lens. Electronics. Camera & Photo. Pentax.
2nd: Samsung YX-M1Z Helix 1GB XM To Go Portable Satellite Radio. Electronics. Car & Vehicle Electronics. Samsung.
3rd: Compaq Presario 2195US Laptop (1.87-GHz Athlon XP 2500+, 512 MB RAM, 40 GB, DVD/CD-RW Combo Drive). Electronics. Computers & Accessories. Compaq.
4th: J-Tech Digital HDMI 1.4 Switch Switcher Box Selector 3 In 1 Out Audio Extractor w/Optical SPDIF & RCA L/R Audio Out & IR Control Supports...

Options:
A: Meprolight ML19810-Armscor USA/Rock Island Gun Scopes. Sports & Outdoors. Sports & Fitness. Meprolight.
B: CyberPower  CP1500AVRLCD Intelligent LCD UPS System, 1500VA/900W, 12 Outlets, AVR, Mini-Tower. Electronics. Computers & Accessories. CyberPower.
C: Bravo View IH-09AB - KID FRIENDLY Automotive IR Wireless Headphones (Dual Source). Electronics. Headphones. Bravo View.
D: Lamplight Farms 110 Chamber Oil Lamp. Home & Kitchen. Home Dcor. Lamplight Farms.
E: ProForm Endurance 520 E Elliptical Trainer. Sports & Outdoors. Sports & Fitness. ProForm.
F: 2 Pack Gold 6 ft High Speed HDMI Cable for PS3 DVD 1080p HDTV New. Electronics. Accessories & Supplies. eForCity.
G: Speedo Women's Solid Colorblock Thin Strap Endurance Lite Swimsuit. Sports & Outdoors. Sports & Fitness. Speedo.
H: 3T Ergonova Pro Handlebar. Sports & Outdoors. Outdoor Recreation. 3T.
I: ClamCase Pro for iPad 2, 3, 4, Incipio ClamCase Pro Bluetooth Keyboard [100 Hour Playtime] for iPad 2, 3, 4 - White/Silver. Electronics. Computers &...
J: Chef Buddy 3-Tier Chocolate Fountain. Home & Kitchen. Kitchen & Dining. Chef Buddy.
K: Trijicon BE14-C-600765 Beretta Bright & Tough 3 Dot Night Sight Set, PX4 Compact, Green Front & Rear Lamps. Sports & Outdoors. Sports & Fitness. Trijicon.
L: Indigi 2-in-1 Bluetooth + GSM Wireless Smart Watch Phone Cell Phone Camera MP3 For Android Galaxy S6 S6 Edge Note 4 Note 3 (Silver). Electronics...
M: Dell Latitude D630 Core 2 Duo T7300 2.0GHz 2GB 80GB CDRW/DVD 14-Inch Laptop Windows 7 Professional. Electronics. Computers & Accessories. Dell.
N: Toadily Handmade Beeswax Candles 36 Hand Poured Beeswax Tea-Light Candles in IVORY - Plastic Cups & Chemical Free Cotton Wicks - 100% Beeswax Candles Made...
O: Cisco SD208 8-port 10/100 Switch. Electronics. Computers & Accessories. Cisco.
P: VooDoo Tactical Standard 15-7644 MOLLE Deployment Bag. Sports & Outdoors. Sports & Fitness. VooDoo Tactical.
Q: Logitech G710+ Mechanical Gaming Keyboard with Tactile High-Speed Keys - Black. Electronics. Computers & Accessories. Logitech.
R: K2 Sports Women's Athena Fitness 2012 Inline Skates (Silver/Black). Sports & Outdoors. Outdoor Recreation. K2.
S: Vshinic Camping Lantern 30 LED Collapsible Tent Light Flashlights for Hiking, Blackouts,Emergency,Outdoor and Indoor (Grey). Sports & Outdoors. Outdoor Recreation. Vshiny.
T: Farberware Soft Grip Set of 3 Colanders, Assorted Colors by Lifetime Brands. Home & Kitchen. Kitchen & Dining. Farberware.
Answer: B