What evidence of a struggling tone toward

aging and death do you find in

Shakespeare's Sonnet 73?

AThe juxtaposition of "yellow leaves/or none," "ruined choirs/sweet birds sang" indicates turmoil.
BIn me thou seest the twilight of such day

As after sunset fadeth in the west.

CThis thou perceivest, which makes thy love more strong /To love that well which thou must leave.