There were numerous things. For starters, he could've resigned and showed that he doesn't plan to become a dictator. In addition, Romans were all about outward appearance and social status and much of Caesar's behavior towards the high ranking senate members was humiliating to them so they naturally loathed him. He could've given them more respect in order to gain their support.
Well, here is a hint. Anything ending in (.com) is not usually trustworthy, because they are usually trying to sell something, or are just not accurate. (.gov) is trust worthy I guess, but they are telling you what you want to hear. (WIKI IS NOT TRUSTWORTHY AT ALL) (.edu) would be the best, or (.org)
The answer would be C. The French and Indian War left Great Britain in debt