Final answer:
Opsonins enhance the recruitment of additional leukocytes to the site of inflammation in the step of inflammation.
Step-by-step explanation:
The step of inflammation that is enhanced by the presence of opsonins is the recruitment of additional leukocytes to the region (E). Opsonins are molecules that tag pathogens for phagocytosis. In the presence of opsonins, leukocytes are attracted to the site of inflammation and aid in the clearance of the infection by engulfing and destroying the pathogens.