"On Liberty" is a literary work associated with whom?

John Stuart Mill

The correct answer is Option 3 - John Stuart Mill

John Stuart Mill, a political thinker and an activist in the nineteenth century Britain, offered a passionate defence of freedom of expression, including freedom of thought and discussion. In his book "On Liberty" he offered four reasons why there should be freedom of expression even for those who espouse ideas that appear ‘false’ or misleading today.