You are formatting a new USB drive to be used between several systems running different operating systems (Windows, OSX, Linux). What is the best format to use for the USB drive?
FAT32 is an older format that is supported on most systems, and is the best option provided. NTFS may cause issues between systems and OSs. HFS+ is the native OSX format and is not natively supported by some OSs (to include Windows). AES-128 is an encryption standard.