Final answer:
Erythema, or redness of the skin, is usually caused by increased blood flow due to inflammation. This greater blood flow to the inflamed area is what visibly causes the redness. The correct option is c).
Step-by-step explanation:
The question asks what leads to the redness of inflammation. Among the options provided, increased blood flow is correct.
Inflammation results in the dilation of blood vessels, leading to an increase in blood flow to the affected area. This greater presence of blood near the surface of the skin causes the redness typically observed during an inflammatory response.
Skin blushing, erythema, or redness is usually caused by an increase in blood flow, oxyhemoglobin, fever, inflammation, trauma "wound," and alcohol consumption. Option c) is the correct one.