Which of the following should a teacher or student be able to recognize as “software piracy”?

(a) Headmaster
(b) A teacher writing a program that resembles another
(c) A teacher or student violating copyright law of the U.S.
(d) A student making backup copies of copyrighted software

✅ Correct option: (c) A teacher or student violating copyright law of the U.S.
Explanation: Software piracy means illegal copying, use, or distribution of software—i.e., a copyright violation.