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

Open$-$source software is rarely used by organizations

Open$-$source projects usually fail because few programmers are willing to work for free

Many open$-$source projects have become successful and are used regularly by companies and organizations

Because the source code is available to the public, open$-$source software is generally not secure

Open$-$source projects are sometimes successful, but the software cannot be used by companies tron