Step 1: Understanding polymorphs.
Polymorphs, or polymorphonuclear leukocytes, are white blood cells characterized by a multilobed nucleus.
Step 2: Analyzing the options.
(A) Neutrophils: Correct. Neutrophils have a multilobed nucleus and are therefore called polymorphs.
(B) Monocytes: Incorrect. Monocytes have a single, kidney-shaped nucleus.
(C) Basophils: Incorrect. Basophils are granulocytes but are not termed polymorphs in this context.
(D) Eosinophils: Incorrect. Although granulocytes, they are not commonly referred to as polymorphs.
Step 3: Conclusion.
The correct answer is (A) Neutrophils.