Answer:
1. Purity is light. Not just an ordinary light, but a transcendental light.
2. The greatest gift you can give another is the purity of your attention.
3. Purity lives and derives its life solely from the Spirit of God.
4. Purity and simplicity are the two wings with which man soars above the earth and all temporary nature.
The answer is D. In caste systems you are born into a certain level of society and cannot change that.
I would have to guess it is B