Read the following passages carefully and answer the questions that follow.
The Caste System has been one of the most misrepresented, misinformed, misunderstood, misused and the most maligned aspects of Hinduism. If one wants to understand the truth, the original purpose behind the caste system, one must go to antiquity to study the evolution of the caste system. Caste System, which is said to be the mainstay of the Hindu social order, has no sanction in the Vedas. The ancient culture of India was based upon a system of social diversification according to spiritual development, not by birth, but by his karma (doings). This system became hereditary and over the course of many centuries degenerated as a result of exploitation by some priests, and other socio economic elements of society.
Caste system has enabled Hindu civilization to survive all invasions and to develop without revolutions or important changes, throughout more than four millennia, with a continuity that is unique in history. Caste system may appear rigid to our eyes because, for more than a thousand years, Hindu society withdrew itself from successive domination by Muslims and Europeans. Yet, the greatest poets and the most venerated saints, such as Sura Dasa, Kabir, Tukaram, Thiruvalluvar and Ram Dasa; came from the humblest class of society. In the words of Sarvepalli Radhakrishnan, "In spite of the divisions, there is an inner cohesion among the Hindu society from the Himalayas to the Cape Comorin."