Instruction: Evaluate the titles of Product 1 and Product 2, then choose the option that best describes the relation between the two products.

Input:
Product 1: EverStretch Leg Stretcher: Get More Flexible with The Door Flexibility Trainer PRO Premium Stretching Equipment for Ballet, Dance, MMA, Taekwondo &amp; Gymnastics. Your own Portable Stretch Machine!
Product 2: OPTP The Original Stretch Out Strap with Exercise Poster Top Choice of Physical Therapists &amp; Athletic Trainers

Options:
A: Users who buy product 1 may also buy product 2.
B: Users who view product 1 may also view product 2.
C: The product 1 is similar with the product 2.
Answer: B