Answer:
The answer to this question is given in the explanation section:
Step-by-step explanation:
The correct Answer is : Opensource
Now lets talk about each option
Opensource: These are software whose code is available on internet and anyone can modify it and distribute it. They are usually under GNU or OSD compliance license.
Shareware: These are software which are freely available for some time.
commercial: These are software which has its own license and used commercially. They require payment to use.
Freeware: They are free to use.