I think its A, I hope this helps.
What allowed the christian crusaders kingdom to remain until 1291 is the fact that, the Muslims were too divided to conquer the kingdom. The Visiogoths from Spain were able to sent reinforcements. Venice and Genoa used the Kingdom as a trade hub. <span />
Answer: Answer in file below hope this will help!!!!!
Explanation:
I think it would be options 1 and 2, these seem to make the most sense.
The Agricultural Revolution of the 18th century paved the way for the Industrial Revolution in Britain. New farming techniques and improved livestock breeding led to amplified food production. This allowed a spike in population and increased health. The new farming techniques also led to an enclosure movement.