What are the positive shapes in the Marizy Sainte-Genevieve?

Leon and sara are arguing over when the best time is to degrease soup. leon says that it's easiest to degrease soup when it's boiling. sara says it's easiest to degrease soup when it's cold. who is correct? a. neither leon nor sara is correct. b. leon is correct. c. both leon and sara are correct. d. sara is correct. student b   incorrect which correct answer?

Ineed someone to describe what they mean in the instructions !

I’m a paragraph of no less than 125 words, explain the single most important factor involved in advancing american classical music in the twentieth century.