The correct answer is D. They were extremely radical
Step-by-step explanation:
The Jacobins were an important political association that emerged at the end of the 18th century in France. The Jacobins were against the monarchy and soon became a popular movement. Indeed, after the monarchy ended in the country, the Jacobins were in the power for a short time that was characterized by violence and massacres. This occurred because the movement was extremely radical and due to this, Jacobins executed anyone who had an opposite perspective or who opposed their ideas. Thus, one characteristic of the Jacobins is that they were extremely radical.