Which statement is a central idea of the article?
Arecent invention will help to prevent plastic
from being dumped into the ocean.
3-D printing is faster and less expensive than
traditional manufacturing processes.
Silicone is a unique material used to produce
rubber that can reform bonds on an atomic
level.
D
A new type of rubber that can repair damage
has the potential to revolutionize a number of
products.

the correct answer is "c": the pillars proclaimed his regret at the bloodshed at the battle of kalinga and his conversion to buddhism.

the kalinga war is considered as one of the largest battles in the history of india. it was fought between the between the maurya empire, which ruled the lands of what is now known as india at the time, and the independent feudal kingdom of kalinga.

the army of maurya empire, led by its king ashoka, fought a prolonged war against kalinga. the war ended around 262 bce with the victory of the maurya empire. it is believed that ashoka, after having witnessed the loss of many lives during this war, felt deep responsibility and eventually converted into buddhism.