C) Neutrophils – phagocytic and destroy foreign organism
D) Monocytes – secrete heparin
Explanation
Mast cells, found in matrix of connective tissue produces heparin and histamine. Monocyte is the largest leucocyte with rounded nucleus and they are the direct precursor of macrophages.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.