According to the cladogram, which organisms are the most primitive?

flies

wasps

beetles

moths

The question is incomplete; however, according to the information obtained from the literature, the beetles are most primitive because they are the most basal group in the cladogram

Explanation:

A cladogram is a phylogenetic (evolutionary) tree that shows the relationships among different taxonomic groups. Cladograms are a type of diagram useful to classify species and to analyze their evolutionary histories, but their branch lengths have no an evolutionary meaning to determine the time of separation between groups