CompTIA ITF+ Practice Test

Open source software is the correct option because it allows developers to access and modify the original code of the software and redistribute their modified versions. Option A, closed source software, does not allow access to the original code and therefore, modifications cannot be made. Option B, proprietary software, is owned by a company and cannot be modified or redistributed by other developers. Option C, freeware, may allow users to modify the code, but does not guarantee the ability to redistribute modified versions. Only open source software provides the necessary freedoms for developers to modify and release their own versions of the software.