Step 1: Approach
Recall how aspirin is prepared and what the product is called.
Step 2: Name
Salicylic acid has an OH and a COOH on the ring. Treating it with acetic anhydride puts an acetyl group on the oxygen of the OH. The product is acetylsalicylic acid.
Step 3: Conclusion
The chemical name of aspirin is acetyl salicylic acid, option (B). Chloroxylenol and thymol are antiseptics.
Final Answer:
Aspirin is acetyl salicylic acid, option (B).
\[ \boxed{\text{Acetyl salicylic acid}} \]