Answer:
11. D, 12. 3, 13. D, 14. C
Explanation:
An alliance is someone or group you team up with.
The three eventual consequences are the following:
First – it is the end of feudalism, which was both the social and economic system of the Middle Ages.
Second – it is the beginning of centralized government in England, and
Third - it also started the development of a democracy there.