in what way does the line “sags like a heavy load” in "harlem" relate to the overall feeling of "the weary blues"?

a. the song lyrics in “the weary blues” reflect a “heavy load” for the singer.

b. the audience in “the weary blues” is deeply affected, or “loaded,” by the song.

c. the speaker of “the weary blues” is not impressed by the singer, who “sags.”

d. the singer in "the weary blues" "sags" under the pressure of performing.