संरचनात्मक विश्लेषण की लचीलापन आव्यूह विधि (flexibility matrix method) को मूल रूप से किस रूप में वर्गीकृत किया गया 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?