Withdrawing and refusing the same person's blood is known as:

Correct option is C

The correct answer is (c).
Introduction
Autologous transfusion refers to collecting and reinfusing a patient's own blood. Homologous/allogenic uses donor blood; heterologous is from different species.
Information Booster

• Autologous: same person.
• Homologous/allogenic: same species, different individual.
• Heterologous: different species.
• Withdrawing and reinfusing own blood = autologous.

• Homologous: from another person.
• Allogenic: same as homologous.
• Heterologous: from animal.