Step 1: Understanding the Concept
Each type of leucocyte has a particular role.
Step 2: Check the wrong pairs
Cyanophils (basophils) release histamine, so they do not show antihistamine action. Neutrophils are phagocytes, not producers of antitoxins. Monocytes are phagocytes and do not secrete histamine.
Step 3: Check acidophils
Acidophils (eosinophils) increase in allergy, show antihistamine properties and help in detoxification.
Step 4: Conclusion
Acidophils with detoxification is the correct match.
Final Answer:
The correct match is acidophils with detoxification.
\[ \boxed{\text{(B) }\text{Acidophils - Responsible for detoxification}} \]