निम्नलिखित में से किस घटना को भारत के स्वतंत्रता संग्राम में एक प्रमुख महत्वपूर्ण मोड़ माना जाता है?

The arrival of which commission in India triggered widespread protests, including mass hartals across the country in 1928?

Which of the following leaders was instrumental in initiating and leading India’s struggle for independence?