Instruction: Given the products the user has purchased in history, rank the items in the listed options and output the item that the user is most likely to purchase next. Answer from one of the options.

Input:
1st: Mongoose Men's Montana Mountain Bike, Matte Orange, Medium. Sports & Outdoors. Outdoor Recreation. Mongoose.
2nd: Crosman CPA416AORG2 Centerpoint 4-16x40mm Riflescope. Sports & Outdoors. Sports & Fitness. Crosman.

Options:
A: Men's Compression Shorts - Performance Grade Compression Shorts For Active Men - Great For Running & Working Out - Sized For Men & Boys -...
B: RAYSUN Universal Quick Rapid Camera Shoulder Strap Belt for Canon Nikon Sony Pentax Olympus Panasonic. Electronics. Camera & Photo. RAYSUN.
C: BioPEDIC Luxury Top Loft Gel Fiber Mattress Pad, Queen. Home & Kitchen. Bedding. BioPEDIC.
D: Cisco-Linksys Dual-Band Wireless A/G Media Center Extender WMCE54AG. Electronics. Computers & Accessories. Linksys.
E: AmazonBasics DisplayPort to DVI Adapter. Electronics. Computers & Accessories. AmazonBasics.
F: Berkley Tube Rod Rack. Sports & Outdoors. Sports & Fitness. Berkley.
G: Discover Fish® New Multi Jointed Jointed Fishing Lures Life-like Hard Lures Bass Bait Swimbait Minnow Crank Shad Herring Bass Pike Muskie(1pcs). Sports & Outdoors. Sports...
H: STORAGE MANIAC Set of 3 Foldable Fabric Storage Bins, Storage Cubes for Shelf, Aqua, Blue, and Khaki. Home & Kitchen. Storage & Organization. STORAGE MANIAC.
I: Westmark Germany Stainless Steel Easy-to-use Rotary Egg Beater Whisk With Black Handle. Home & Kitchen. Kitchen & Dining. Westmark.
J: BTExpert Battery for Asus N56Vz-S4035D N56Vz-S4036V N56Vz-S4044V N56Vz-S4049V N56Vz-S4054 N56Vz-S4054V N56Vz-S4066V N56Vz-S4086V N56Vz-S4096V 5200mah 6 Cell. Electronics. Computers & Accessories. BTEXPERT.
K: Collapsible Flask Set for Sneaking Alcohol by Boozer Babe, Set Includes ~ 2 ~ 8 oz., 2 ~ 16 oz. 2 ~ 32 oz. &...
L: SAGEM KSAFD1200200W1EU 12V 1.5A 1500mA AC Power Adapter. Electronics. Accessories & Supplies. SAGEM.
M: 6PCS 8" Round Crochet Lace Doily BEIGE 100% Cotton Handmade, Set of 6 Pieces. Home & Kitchen. Kitchen & Dining. Creative Linens.
N: Top of the World NCAA Off Road Adjustable Cap. Sports & Outdoors. Fan Shop. Top of the World.
O: Grifiti Nootle Universal Tablet Mount, Mini Ball Head, Magnetic Foot Stand for Metal surfaces. Electronics. Computers & Accessories. GRIFITI.
P: bowlingball.com Monster Grip Bowling Glove. Sports & Outdoors. Sports & Fitness. bowlingball.com.
Q: Cool knight Alocs portable Alcohol Stove 1-2 person 7pcs kitchenware set Outdoor Hiking Camping picnic. Sports & Outdoors. Outdoor Recreation. Cool knight.
R: BV Bicycle Strap-On Bike Saddle Bag/Seat Bag/Cycling Bag. Sports & Outdoors. Outdoor Recreation. BV.
S: Silver Buffalo DM2334 Universal Despicable Me Minion Needs Coffee Jumbo Ceramic Mug, 20-Ounces. Home & Kitchen. Kitchen & Dining. Universal.
T: Corsair TWIN2X4096-8500C5D Dominator 4GB 2 X 2GB PC2-8500 1066MHz 240-Pin DDR2 CL5 Dual Channel Desktop Memory,Corsair,TWIN2X4096-8500C5D />. Electronics. Computers & Accessories. Corsair.
Answer: R