Task: Sequential_Recommendation

system
You are a helpful assistant. The assistant first thinks about the reasoning process in the mind by using Belief-Desire-Intention (BDI) framework and then provides the user with the answer. The reasoning process and answer are enclosed within <think> </think> and <answer> </answer> tags, respectively. 
Below is an instruction that describes a task. After thinking, when you finally reach a conclusion based on the customer's intention, desire and belief, clearly state the BDI thinking process within <think> </think> and then the answer within <answer> </answer> tags.


user 
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:
Purchase History:
1st: Farnam Slick 'N Easy Horse Grooming Block. Sports & Outdoors. Sports & Fitness. Farnam.
2nd: Troxel Sport Schooling Helmet. Sports & Outdoors. Sports & Fitness. Troxel.
3rd: Rock Pegs Small for Indoor & Outdoor Rock Wall to Get Kids Exercise Climbing to Strength Upper Body known as Rock hold - rock climbing...

Options:
A: Professional Security Alarm Set. Electronics. Security & Surveillance. As Seen On TV.
B: beyerdynamic EDT 770 S ear pad set soft skin black. Electronics. Accessories & Supplies. beyerdynamic.
C: Primitives by Kathy Box Sign, French Fry. Home & Kitchen. Home Dcor. Primitives by Kathy.
D: Graphics and More Please Don't Disturb Now Recording Microphone Plastic Door Knob Hanger Sign. Home & Kitchen. Home Dcor. Graphics and More.
E: Barsony New Olive Drab Leather IWB Holster for 2", Snub Nose .38 .357 Revolvers. Sports & Outdoors. Sports & Fitness. Barsony.
F: Porper's Tip Burnisher. Sports & Outdoors. Sports & Fitness. Sterling Gaming.
G: LINEN SOUQ Genuine Premium Egyptian cotton 600 Thread Count, Made In Italy - Impression Italian Finish CHOCOLATE 4-Piece Sheet Set, 24 inches Deep Pocket, Single...
H: Blackstar PSU1FLY Power Supply. Electronics. Computers & Accessories. Blackstar.
I: Outdoor camping Instant Tent. Sports & Outdoors. Outdoor Recreation. Eureka!.
J: Merax High-Back Ergonomic Pu Leather Office Chair Racing Style Swivel Chair Computer Desk Lumbar Support Chair Napping Chair (Purple and Black). Home & Kitchen. Furniture...
K: Samsung SyncMaster 213T 21" LCD Flat Panel Monitor -Silver. Electronics. Computers & Accessories. Samsung.
L: Fancy Collection Embroidery Curtain Set 1 Panel Drapes with Backing & Valance (55"x 84", Burgundy). Home & Kitchen. Home Dcor. Fancy Linen.
M: ChezMax Blue and White Porcelain Chair Back Cushion Cover Linen Throw Pillow Case Cotton Pillowslip Square Decorative Pillowcase for Drawing Room Flowers 18 X 18''...
N: MEMORIALS 4U Elite Mother of Pearl Cremation Urn - Large Mother of Pearl Urn for Human Ashes - Solid Brass 100% Handcrafted Mother of Pearl...
O: MADE IN THE USA 300TC 100% Cotton Sateen Scroll Sheet Set, By Veratex. Home & Kitchen. Bedding. Vertatex.
P: Bormioli Rocco Oslo Cappuccino Glass Cups 4 Set 7.5 Oz | Tempered Glass, Ergonomic Stainless Steel Handles, Dishwasher Safe | For Coffee Drinks, Beverages, Latte,...
Q: LimbSaver Kodiak Lite Rifle Sling with Quick Detach, Black. Sports & Outdoors. Sports & Fitness. LimbSaver.
R: Klean Kanteen Kid's Stainless Steel Bottle with 3.0 Sport Cap. Sports & Outdoors. Sports & Fitness. Klean Kanteen.
S: Camopod Flexi Pod, Portable Flexible Tripod for Digital Cameras, Bendy Large Flexible Light Weight and Travel Compact, Camera Accessories, Revolutionize Your Photography Now, Extra Large...
T: HOPSOOKEN 30L Lightweight Travel Backpack Waterproof Packable Sport Hiking Daypack. Sports & Outdoors. Outdoor Recreation. HOPSOOKEN.


assistant
Answer: T