| Fibroblasts, macrophages and mast cells are seen in |
| a) | Epithelial tissue | b) | Connective tissue |
| c) | Skeletal muscle tissue | d) | Smooth muscle tissue |
| (b)Loose connective tissue contains fibroblasts (cells that produce and secrete fibres), macrophages (phagocytic in nature) and mast cells (which secretes heparin, serotonin and histamine). |