Select all that apply.

• A

  In OSS access to source code by third parties commonly requires the party to sign a nondiscloser agreement.

• B

  It is software whose license does not allow for the distribution of the software source's source code.

• C

  Open source software and its source code must be freely distributable.

• D

  In OSS all users must be able to modify the source code and create derived works.