Answer:
The condition that is NOT a known consequence of electrolyte imbalance is d. Development of lanugo.
Step-by-step explanation:
People who have eating disorders commonly develop lanugo, a fine, light hair on the chest, arms, back, and face. Lanugo is a reaction to fat depletion - being too thin -, an attempt by the body to maintain its temperature. Lanugo is not a consequence, therefore, of electrolyte imbalance. The most common potentially fatal consequence of electrolyte imbalance is cardiac arrhythmia, and possibly heart failure.