The answers to this question are A, B, and C. For those who do not know, iconv is the short term for internalization conversion. This is a type of application that can be used in order to program different characters easily. You can easily change the codes so that your needs can be accommodated easily.
This can be very effective for your needs. This was used in a type of operating system but this has now gained recognition as more and more programmers have started to use this for their different needs. Remember that not all types of computers would have the ability to sustain this type of program.