A critical summary about music for my mother

Which of these sentences is the correct one?

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

Match each stanza structure to the correct term. a stanza of two lines quatrain a stanza of four lines octave a stanza of six lines couplet a stanza of eight lines sestet arrowboth arrowboth arrowboth arrowboth