Figurative language these are great pictures

Metonymy is best defined as a figure of speech in which

Read the phrase. the garden of my class which is the correct way to rewrite this phrase? my class’ garden my class’s garden my classes garden my classes’ garde

The knights of the round table were bound by the code of chivalry that called for loyalty to king, god, and lady.  in which set of lines from  sir gawain and the green knight  does sir gawain describe upholding this code?