Sodium depletion occurs in excessive sweating, and cannot be corrected by drinking water alone. When uncorrected, it may lead to

(a) Muscle cramps, loss of energy, fatigue, and faintness

(b) Increase of urea in the blood

(c) Swelling of ankles and feet

(d) Renal failure

Submitted By: Syed Bilawal Shah (Sain)