दी गई श्रृंखला में प्रश्न चिह्न (?) को कौन सी संख्या प्रतिस्थापित करेगी? 9, 12, 18, ?

Which of the following events is considered a major turning point that fueled Indian nationalism during British rule due to its brutal nature and widespread condemnation?

Which of the following events is considered the first major peasant uprising against the British in India?