Igor Stravinsky became an American citizen in 1940. Option C is correct.
Igor Fyodorovich Stravinsky was a Russian-born composer, pianist, and conductor. He is regarded to as one of the major and influential composers of the 20th century.
His career as a composer was notable for its stylistic diversity.
He first became internationally famous with three ballets commissioned by the impresario Serge Diaghilev and first performed in Paris by Diaghilev's Ballets Russes: The Firebird (1910), Petrushka (1911), and The Rite of Spring (1913).
