Final answer:
The growing problem at Fort Sumter occurred because both the Union and Confederacy would not allow the other to take the fort.
Step-by-step explanation:
The subject of this question is History. It is asking about the growing problem at Fort Sumter and the possible reasons behind it.
The correct answer is both the Union and Confederacy would not allow the other to take the fort. This growing problem at Fort Sumter occurred because both the Union and Confederacy wanted to control the fort and prevent the other side from taking it.
This question belongs to the topic of Civil War and Fort Sumter.
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