What is the primary purpose of the cardiovascular system?

The primary purpose of the cardiovascular system is to transport blood, nutrients, gases, and waste throughout the body. This system consists of the heart, blood vessels, and blood, and it plays a crucial role in maintaining homeostasis. The cardiovascular system is responsible for delivering oxygen and nutrients to cells while removing carbon dioxide and metabolic waste products. By facilitating this exchange, it ensures that all tissues receive the necessary materials for energy production and cellular function, contributing to overall health and vitality.

The other functions listed do not align with the primary role of the cardiovascular system. While digestion is a function of the gastrointestinal system, sensory perception is linked to the nervous system, and immune responses are primarily managed by the lymphatic and immune systems. Thus, option B is the correct answer as it directly reflects the essential functions of the cardiovascular system in the human body.