Instruction: Determine the relevance between the query and the product title provided, and select your response from one of the available options.

Input:
Query: bluetooth
Product: Bluetooth Headphones, Spidoc 5.0 Auto Pairing Deep Bass HiFi Stereo Sound True Wireless Earbuds in Ear Bluetooth Earphones Binaural Call Headset with Built in Mic and Charging Case for Sports

Options:
A: The product is relevant to the query, and satisfies all the query specifications.
B: The product is somewhat relevant. It fails to fulfill some aspects of the query but the product can be used as a functional substitute.
C: The product does not fulfill the query, but could be used in combination with a product exactly matching the query.
D: The product is irrelevant to the query.
Answer: A: The product is relevant to the query, and satisfies all the query specifications.