Which of the following ancient Indian scholars was the proponent of the grammar tradition?

Bhartrihari was the ancient scholar who advanced the grammar tradition.

Ishvara Krishna is linked to the Samkhya school of philosophy.

Gautama is associated with the Nyaya system of logic.

Kanada founded the Vaisheshika school of atomism.

Bhartrihari's Vakyapadiya explores language and the philosophy of grammar.

Panini's Ashtadhyayi remains the foundational text of Sanskrit grammar.