The correct answer is: C. Either I or II follows.
The villagers were able to catch the dacoits because they were alert and united. However, it is possible that they would have been able to catch the dacoits even if they had not been armed with sophisticated weapons. Therefore, providing the villagers with sophisticated weapons is not a necessary course of action.
On the other hand, it is clear that the villagers showed courage and unity in catching the dacoits. Therefore, rewarding them for their courage and unity is a good course of action.
In conclusion, either course of action I or course of action II could be taken, but both courses of action are not necessary.