Answer:
The allusions show that the police and the skinheads share a common language based on their race.
Step-by-step explanation:
Allusion is a figure of speech that is used to call something to mind, an object or circumstance without making direct reference to it.
This is usually added by an author to make reference to a particular situation or create a context that is related to another circumstance in the play or script.
From the passage given which is from the MIdsummer of Derek Walcott, the passage that best describes the effects of allusions in the passage is the Garden of Eden which shows that nothing stays the same forever and change is constant by showing that the police and the skinheads share a common language based on their race.