The correct answer is (a) Savit.
Gayatri Mantra is a Vedic mantra that is considered to be the most sacred mantra in Hinduism. It is a prayer to the sun god, Savitr, and is said to be a powerful tool for spiritual enlightenment.
The mantra is as follows:
Om tat savitur varenyam bhargo devasya dhimahi dhiyo yo nah prachodayat
This can be translated as:
We meditate on that adorable light of the divine Savitr, who may enlighten our intellect.
The mantra is said to be a powerful tool for spiritual enlightenment because it helps to focus the mind and purify the heart. It is also said to be a source of great strength and courage.
The other options are incorrect because they are not related to the sun god, Savitr.
(b) Agni is the god of fire.
(c) Vishnu is the god of preservation.
(d) Indra is the king of the gods.