Answer: A. Using the new computer animation software
Step-by-step explanation:
A sentence fragment as the term suggests, is not a complete sentence as it is lacking a missing part thereby making it a dependent clause or an incomplete idea.
The sentence Using the new computer animation software is a sentence fragment as it does not present a completed thought. An example of a completed thought using the sentence would be Using the new computer animation software, Nandi was able to create a short children's film.