Which of the following is true about carrying a concealed firearm in Florida without a license?

Carrying a concealed firearm in Florida without a license is a felony offense. This means that regardless of the person's age or military status, it is illegal and considered a serious crime. Option A is incorrect because, in Florida, the minimum age to obtain a concealed carry license is 21, not 25. Option C is also incorrect because it suggests that carrying without a license is only a misdemeanor, which is not true. Option D is incorrect because being a military veteran does not exempt someone from needing a concealed carry license in Florida.