Sovereignty, is the broad concept that refers to the right and ability of a nation to govern itself and make decisions regarding its citizens (A). Popular sovereignty is more strongly associated with a democratic principle of self governance, which is a possible answer but "sovereignty" in and of itself is probably the best answer to the question.
They wrote a new constitution.
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(D) Paintings using the technique of fresco were copied by neighboring countries.
The ancient Indian literature, written in Sanskrit, peaked during this Empire.</span>
Its crackling roots blazed and hissed as a blacksmith plunges a glowing ax or adze in an ice-cold bath and the metal screeches steam and its temper hardens that's the iron's strength - so the eye of Cyclops sizzled round that stake