Respuesta :

katomic
hemoglobin is the protein that found in red blood cells that gives blood its color

The correct answer is hemoglobin

Hemoglobin is the pigment that provides red color to the blood. This red color is due to the pressence of iron in it.These red  blood cells are capable of binding oxygen and transporting it to various part of the body. This helps the various cells of the body to perform its function.