Name the source poem: “No — yet still stedfast, still unchangeable,/ Pillow’d upon my fair love’s ripening breast.”

A. “Ode to a Nightingale”
B. “On the Sonnet”
C. “Ode to Psyche”
D. “Bright Star, would I were stedfast as thou art”

D. “Bright Star, would I were stedfast as thou art”