Knights were indeed lower than vassals and held less prestige in medieval society. It's not true though, that knights didn't have enough prestige in medieval society. Vassals swore to the king or the ruler of a region, whereas knights often swore to vassals, so they still had people under them, but they were not at the top.
D) issues important to the population that people want addressed by the government
Issues that are noticed by the political community as deserving public attention and governmental action
.
Answer:
Chandragupta Maurya
Chandragupta Maurya (c. 321 - c. 297 BCE), known as Sandrakottos (or Sandrokottos) to the Greeks, was the founder of the Maurya Dynasty (4th-2nd century BCE) and is credited with the setting up of the first (nearly) pan-Indian empire
Explanation:
The cause is that he forgot his math book
the effect this had was that he couldn't do the homework