D seems the most likely answer
That if one isn't wealthy, they won't have the proper resources to convince congressmen that their cause is worth defending.
The English route taken by Richard I was the longest, they went around the peninsula and through Italy, then set towards Holy Land on their way, they stayed in Chipre and conquered it. The French, lead by Philippe II, went towards Genova by land and then sailed to the Holy Land, their route was shorter and they took less time to get there.
Goals of the ally in Europe was to make the country stronger
