To determine the most logical explanation for the difference in the number of battles between Tennessee and Mississippi, we need to consider the historical context of the Civil War.
Among the options provided, the best explanation is:
Tennessee had many more battles because it was closer to Union territory.
This is logical because Tennessee was strategically significant during the Civil War, being situated at the crossroads of several key routes and closer to Union-controlled areas, leading to more battles occurring there. On the other hand, Mississippi was more isolated geographically, which likely contributed to fewer battles within its borders.