What two statements about Linux are true? (Choose two.)
A. Linux was started by Linus Torvalds as a project to create a Unix-like environment that he could run on his personal home computer because the systems at the university that he attended ran Unix.
B. Linux is openly available to others with very limited restrictions under the terms of GNU public licensing or GPL guidelines.
C. Linux was developed at AT&T labs to serve as a competition against DOS and Windows operating systems.
D. The Linux source code cannot be altered or modified.
