Final answer:
During the war, men faced issues of rat and lice infestations, as well as a lack of fresh food; all of these factors contributed to the harsh conditions they endured.
Step-by-step explanation:
The men during the war had to deal with a variety of challenging issues. Among these were the infestation of rats and lice, which were common plights in the terrible conditions of the trenches and camps. Additionally, soldiers frequently faced a lack of fresh food, a problem exacerbated by blockades, spoilage, and the logistical difficulties of supplying armies on the move. Thus, the correct answer to what issues the men dealt with during the war is 4) All of the above.