Instruction: Given the title of two products, predict if the two products are similar, if the two products will be purchased or viewed together. Answer only from the options.

Input:
Product 1: RCA RT2911 1000-Watt Home Theater System
Product 2: Wireless Bluetooth Power Amplifier System - 300W 4 Channel Home Theater Audio Stereo Sound Receiver Box Entertainment w/USB, RCA, 3.5mm AUX, LED, Remote - for Speaker, PA, Studio Use - Pyle PT390BTU

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