There is only ever one cause of a conflict in the crucible
If I understand the question correctly, I think it is seeking to analyze if there is one or multiple causes of conflict in Miller's work. I think that the natural answer is to suggest that there is more than one cause of conflict in Miller's depiction of Salem. Something that grows the level it does in terms of scope and uncontrolled nature is not caused by one thing or a singular sensation. Rather, it is almost as if it is a perfect storm of events or convergence. For example, Abigail's accusations start the ball rolling, there are more conflicts that emerge. The townspeople who remain silent in the face of such injustice or the fact that other members of the town benefit from those being accused, like Thomas Putnam, and the personal and social destruction they endure. There are conflicts between those like Proctor and Giles Corey, who speak out against what is being done. One can even argue that there is multiple forces of conflict in Abigail's accusations, in that she suffers from having witnessed her parents' death and not experiencing anything in terms of pure and open love from another. In the end, there are many causes of conflict present in Miller's work and I find it difficult to suggest that there is only one cause.