What were the main causes of the ‘Reign of Terror’?

Well, there were several causes of the Reign of Terror. There were some external threats, which included the war with Austria and Prussia, and the fact that European monarchs were angry over the death of King Louis XVI. Then, some internal threats prevailed, such as leaders Maximilen Robespierre who used the guillotine to kill political rivals and "traitors." Really, almost anyone in France were at risk of dying: men and women, rich and poor, high ranking politicians, lowest criminals all could be swept up and executed if they disagreed with Robespierre's ideologies

b is correct

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depending on what kind of map for example a pltical maps works in many ways this iss how it works it shows the areas and places the democratics and the repbulcicans reside for example if   texas chooses trump for president there a republican state and if   califronia chooses hillary there a democratic state.