D) Silicon Contents is correct
The correct answer is:
B.) He could seek training to become a knight in the military
Explanation:
In the system of primogeniture, the oldest son receives from the parents (that is, usually the father). That means that other sons have to look for "luck" in other places. This normally meant being accepted to be a knight (and hope to start a new family line) or, more infrequently, converting a priest and begging for a career in the church.
Food chain. Think of a food chain as a series of links side by side, and a food web as a large spider web connecting at multiple points.
The Mesozoic era follows the end of the Paleozoic era.
