What is the function of the vascular system?

The vascular system, primarily consisting of the heart, blood vessels, and blood, plays a crucial role in maintaining homeostasis in the body. Its main function is to transport blood, which carries essential nutrients, oxygen, hormones, and waste products to and from cells throughout the body. This transportation system ensures that every cell receives the necessary materials for energy production, growth, and repair, while also facilitating the removal of metabolic waste.

The other functions listed are not the primary roles of the vascular system. Digestion is a function of the digestive system, which processes food into nutrients. Transporting air is primarily handled by the respiratory system, which allows for gas exchange in the lungs. The release and regulation of hormones are managed by the endocrine system. Thus, option C accurately identifies the essential role of the vascular system in supporting and sustaining life by ensuring proper circulation and nutrient distribution.