Instruction: Analyze the titles of Product 1 and Product 2 to determine if they are similar, if they will be purchased or viewed together, and choose the corresponding option.

Input:
Product 1: Mailiya PCI-E to USB 3.0 2-Port PCI Express Card,Mini PCI-E USB 3.0 Hub Controller Adapter with 15-Pin Power Connector and 1 USB 3.0 20-Pin Connector - Expand Another Two USB 3.0 Ports
Product 2: SilverStone Technology Internal PCI-E Expansion Card with USB 3.1 Internal 19-Pin Connector RL-ECU04

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