The actions are adequately matched.
- A life of suffering will lead to a life with religious ascetics. However, it is seen as one of the extremes that should be avoided because self mortification is unprofitable and unworthy.
- A life as an Hindu Prince leads to a life given to pleasures. This is seen as the other extreme because it also leads to being unworthy and unprofitable.
- Meditating under the Bodhi Tree leads to the path of enlightment. It is what leads to "The Middle Way" between "Eternalism" (which is denied by Buddhism) and "Annihilationism" (Budhism accepts the fact of existence. Therefore things can be destroyed.)
Too much power to the central government.
A vast network of roads and trade routes.
Hope that answered your question! :)
C would be the best choice in my opinion. Hope this helps!