Which answer matches this clue: the composer of Norma and La sonnambula whose long lyrical melodies defined the bel canto style?

• A Gaetano Donizetti
• B Vincenzo Bellini ✓
• C Gioachino Rossini
• D Saverio Mercadante

Bellini's flowing melodic lines influenced Chopin and Wagner; the aria Casta diva from Norma remains a touchstone for every soprano.