Correct option is B
The Gayatri Mantra, one of the most revered and widely chanted mantras in Hinduism, is attributed to Sage Vishwamitra. It is found in the Rigveda (Mandala 3.62.10) and is dedicated to Savitr, the Sun deity. Sage Vishwamitra is credited with composing this powerful mantra, which is considered to invoke the divine light and guidance of the Sun to illuminate the mind and soul.