Aldosterone Is a Hormone That Increase the Level of Na⁺

Aldosterone is a hormone that increase the level of Na⁺ in the blood. Considering negative-feedback regulation of blood Na⁺ levels, which of the following events would most likely be an effect of aldosterone on the body in blood Na⁺ levels decreased?

A) Aldosterone would cause a decrease in the amount of Na⁺ that was excreted as part of urine.
B) Aldosterone would cause an increase in the amount of Na⁺ that was excreted as part of urine.
C) Aldosterone would reduce activity in the brain that stimulated salty food cravings.
D) Aldosterone would decrease the amount of Na⁺ that is absorbed at the small intestine.