It’s definitely D. Here’s the definition, “Software piracy is the unauthorized use, copying or distribution of copyrighted software.”
I would say the second option - "She skipped off, singing"
It gives a visual of her being very happy, instead of just saying she was happy.
The word "issues" in the sentence is a plural noun in this case.
Answer: he thinks that shooting guns is not an appropriate use of talent.
Explanation: