In the context of South African copyright law, the correct answer would be:
will require that you contact the original creator of the music and ask permission to use the clip as part of your research presentation.
Under South African Copyright Act No 98 of 1978, using copyrighted material, such as a music clip, generally requires permission from the copyright holder unless a specific exception applies. "Fair use" as understood in some jurisdictions, especially the United States, does not have a direct equivalent in South African law; thus, it's best to seek permission for use.