Which French composer, born in 1813, created the opera 'Les Troyens' and the 'Symphonie fantastique', pioneering programmatic music?

• A Charles Gounod
• B Jules Massenet
• C Leo Delibes
• D Hector Berlioz ✓

Berlioz's Symphonie fantastique (1830) revolutionised orchestral music with its innovative scoring, use of idee fixe, and autobiographical narrative.