The peptide hormone atrial natriuretic peptide (ANP) is released by cardiac muscle cells in the atria of the heart in response to high blood volume. ANP acts to reduce blood pressure.

The following statements describe processes related to the action of ANP:

1. ANP inhibits the active reabsorption of ${Na}^{+}$ ions in the collecting ducts of the kidney, leaving more sodium in the filtrate.
2. Water is retained in the kidney tubule lumen by osmosis, increasing urine volume and decreasing blood volume.
3. ANP stimulates the secretion of aldosterone from the adrenal cortex.

Which of the above statements explain(s) how ANP is able to reduce blood pressure?