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: CamelBak Mil-Tac HydroBak Hydration Pack, 1.5L / 50 oz, Black. Sports & Outdoors. Outdoor Recreation. CamelBak.
2nd: Fizi:k Strap Seat Bag. Sports & Outdoors. Outdoor Recreation. Fizik.

Options:
A: Venzo Bike Chain Missing Link Open and Close Remover Connector Pliers Tool. Sports & Outdoors. Outdoor Recreation. Venzo.
B: Yukon Outfitters V1 Freedom Hammock - Coyote. Sports & Outdoors. Outdoor Recreation. Yukon Outfitters.
C: 1.6-1.7 Cubic Foot Fridge, Blue. Home & Kitchen. Kitchen & Dining. RCA.
D: Beistle 1-Pack Snow Blanket, 32-Inch by 3-Feet 4-Inch. Home & Kitchen. Bedding. Beistle.
E: Sports Coverage NCAA Mens Apron. Sports & Outdoors. Fan Shop. Sports Coverage.
F: Fuse Chicken Titan Loop M Key Chain Cable (Micro USB  Android). Electronics. Computers & Accessories. Fuse Chicken.
G: amtonseeshop Waterproof Mini Mushroom Wireless Bluetooth Speaker (Pink). Electronics. Portable Audio & Video. One by One Shop.
H: Duracell Ion Speed 500 Battery Charger Starter Kit. Electronics. Camera & Photo. Duracell.
I: Koss BT540i Full Size Bluetooth Headphones, Black with Silver Trim. Electronics. Headphones. Koss.
J: RSVP 12 Piece Mini Salt and Pepper Shaker Set with Rack. Home & Kitchen. Kitchen & Dining. RSVP International.
K: Wilton Cupcake Decorating Icing Tips, 12-Piece Set. Home & Kitchen. Kitchen & Dining. Wilton.
L: Wasabi Power Battery for Panasonic DMW-BLH7, DMW-BLH7E, DMW-BLH7PP and Panasonic Lumix DC-GX850, DMC-GM1, DMC-GF7, DMC-LX10. Electronics. Camera & Photo. Wasabi Power.
M: CLOVER 3 in 1 Nylon Extension Arm Set for GoPro Hero 5 / 4 / 3+ / 3 / 2 / 1 --Black. Electronics. Camera...
N: Shenit Multi Angle Stand Premium PU Leather Case Cover Folio for Samsung Galaxy Tab 2 10.1 P5100/P5110 - Orange. Electronics. Computers & Accessories. Shenit.
O: Otis Real Tree Tactical Cleaning System. Sports & Outdoors. Sports & Fitness. Otis Technology.
P: 2013 Giro Aeon Helmet. Sports & Outdoors. Outdoor Recreation. Giro.
Q: KeySmart Classic | Compact Key Holder and Keychain Organizer (2-8 Keys, Red).  KeySmart.
R: SmartWool Men's PhD Outdoor Medium Crew Socks - Past Season. Sports & Outdoors. Outdoor Recreation. SmartWool.
S: Monoprice 108243 RMS 100W Speaker Volume Controller, White. Electronics. Accessories & Supplies. Monoprice.
T: Royal 9332 Gray 8x11 Area Rugs Carpet Contemporary Grey. Home & Kitchen. Home Dcor. Persian Area Rugs.
Answer: P