I’d use the timeline for the first one because you’re dealing with multiple time periods and then use the compare and contrats for the second one because they seem to be comparing the two types of dinosaurs.
C) that
Because it is proper grammar when taking about another person in general
The answer above is completely incorrect. The actual answer is going to be the second option: They shared the belief that rights granted by the US Constitution should apply to all Americans. Hope it helps.