Why could the us not win a quick victory over the vietcong and what was the effect?

The reason why the United States could not win a quick victory over the vietcong was: because they engaged in guerrilla tactics of quick attacks and disappearing into the jungle.
Because we're fighting on their homeland, they simply know the terrain bettwe than we did. The result was a loss of morale among US soldiers due to constantly have to experience massive loss.

Concurrent jurisdiction is the ability to exercise judicial review by different courts at the same time, within the same territory, and over the same subject matter. for instance, a domestic violence matter may be heard in either a general civil court or a family court in the same county.i hope that this you : )

A, c, and d are the answers