Mashaal Masha
Classical composer Florence Price's 1927 move to Chicago marked a turning point in her career. It was there that Price premiered her First Symphony--a piece that was praised for blending traditional Romantic motifs with aspects of Black folk music--and ________ supportive relationships with other Black artists.

Which choice completes the text so that it conforms to the conventions of Standard English?
Difficulty: Medium
A: 

developing

B: 

developed

C: 

to develop

D: 

having developed