Mental excess could produce, for its own purposes, the voluntary blindness and deafness of deliberate solitude, the
artificial impotence of asceticism.

In this sentence, voluntary means:
A. dangerous
B. mournful
C. timely
D. willful

The answer is gonna be C i believe

Tamarind can be grown on homesteads, plantations, and wasteland or as a forest tree. methods of propagating tamarind there are two methods of propagating tamarind trees: seed propagation and vegetative propagation. seed propagation: it involves the collection, preparation and direct planting of the seed.answer from google full credit to google.