The correct option is D Atrial natriuretic factor - Atrial wall - Decreases the blood pressure
Atrial natriuretic factor (ANF) is a hormone that is secreted by the atrial wall of the heart. When there is an increase in the blood pressure, atrial wall of the heart secrete ANF. ANF causes the dilation of the blood vessels which results in decrease in blood pressure and increase in blood flow.
Oxytocin is synthesised by hypothalamus and released by posterior pituitary. It acts on the smooth muscles of breast and stimulates their contraction which leads to ejection milk.
Erythropoietin is a peptide hormone secreted by the juxtaglomerular cells of the kidney. It stimulates the process of RBC synthesis called erythropoiesis.
Insulin is a hormone synthesised by the pancreas and it decreases the blood sugar level.