Final answer:
Citations and references are a must-have feature to identify an article from a scholarly professional journal.
Step-by-step explanation:
Which feature from the list below is a must-have to identify an article from a scholarly professional journal? To identify an article from a scholarly professional journal, one must look for citations and references. Scholarly articles are known for their academic rigor and are required to provide citations and references to support their claims and show evidence of thorough research. Colorful images, glossy paper, and advertisements are not necessarily indicative of a scholarly professional journal.