The correct answer is C. Peer review
Step-by-step explanation:
Peer review is a common method to evaluate the credibility, reliability, and quality of works including scientific articles, journals, experiments, reports, etc. This method implies professionals or experts of the same field reviewing, commenting or assessing others' work. Additionally, peer review is often necessary before publishing. The description provided refers to peer review because it is this process the one that involves scientists commenting or reviewing other scientists' work, considering the work is being reviewed by peers or experts of the same area with similar skills or knowledge.