Which of the following part of brain controls the 24 hour rhythms of our body?

The hypothalamus contains a specific cluster of cells known as the suprachiasmatic nucleus (SCN), which serves as the body's internal clock or "biological clock."

The SCN receives input from the eyes, particularly through specialised light-sensitive cells in the retina. It helps regulate various physiological processes that follow a daily cycle, including sleep-wake patterns, body temperature, hormone release (such as melatonin and cortisol), and other bodily functions that follow a circadian rhythm.