someone please help with this question! i have an idea about the order but i just want to make sure someone else can confirm with their )

Which of the following is a claim about ancient rome that a historian could build san argument around

An effect of the steamboat's popularity was that fewer people traveled by rail. o steam locomotives became less popular. people began to build canals in the united states and europe. o more people began to travel between the united states and europe.

Why did the third estate form the national assembly?