Which of the following statements about open$-$source software is TRUE?

Question $2$ options:

Open$-$source software is free trial of a commercial software.

Open$-$source software is free to use but you need to someone to help you install it$.$

Open$-$source software is free and you have access to the source code.

Open$-$source software only gives you the license to use it for free but you need to pay to own it and use it for profit.