Respuesta :
Answer:
Both (a) and (b).
Explanation:
Inflammation is a type of defense mechanism in the body. This is a type of innate immunity present in the organism from birth. The acute or chronic reaction determines the symptoms of inflammation.
The redness and heat occurs in the inflamed area due to the increase blood flow in the affected area. Tissue swelling or edema may occur due to the accumulation of fluid that increases the phagocytic activity of WBCs and other useful chemicals that can reach to the damaged area.
Thus, the answer is option (d).