Water is lost from the body through which of the following?

Water is lost from the body through several mechanisms, and option A accurately lists all the major routes. The kidneys remove excess water and waste products through urine, which is a primary way the body regulates hydration and electrolyte balance. Feces also contain water, and although it is less than what is lost via urine, it is still a significant factor in overall fluid loss.

Additionally, water evaporates from the skin through a process known as insensible perspiration, which occurs even when we are not sweating profusely. The lungs expel water vapor every time we exhale, contributing to moisture loss, especially during breathing.

In this context, recognizing all these routes emphasizes the importance of maintaining hydration by drinking enough fluids, as multiple pathways can lead to dehydration. The other options do not encompass the full range of ways the body loses water, making option A the most comprehensive and correct choice.