While Calibans howled down the barred streets of an empire

that began with Caedmon’s raceless dew, and is ending

in the alleys of Brixton, burning like Turner’s ships.

–Midsummer,
Derek Walcott
Which words or phrases in the passage are allusions? Check all that apply.
A:“Calibans”
B:“began with”
C:“Caedmon’s raceless dew”
D:“alleys of Brixton”
C: “Turner’s ships”