Which of the following actions can lead to disqualification in the research paper process?

Plagiarizing content is a serious violation in the research paper process, which can lead to disqualification. Plagiarism undermines the integrity of academic work by presenting someone else's ideas, words, or findings as your own without proper acknowledgment. This not only goes against ethical academic standards but also can have significant repercussions, including disqualification from competitions or assessments that require original work. In the context of the research paper, maintaining originality and properly citing sources is essential to uphold credibility and demonstrate a thorough understanding of the subject.

Other actions, while problematic, do not carry the same weight of disqualification. Failing to submit the paper is a failure to participate, submitting a paper without a cover page may be a formatting issue but doesn't typically cause disqualification, and not using enough references might be a concern regarding the paper's quality but does not directly lead to disqualification if others requirements are met. Thus, plagiarism stands out as the most serious infraction that can result in disqualification from the research paper process.