Which rock music festival, held each June at the Hippodrome de Longchamp near Paris, is one of France's largest with a daily attendance over 100,000?

• A Solidays ✓
• B Rock en Seine
• C Hellfest
• D Vieilles Charrues

Solidays, organised by the charity Solidarite Sida since 1999, raises funds for the fight against HIV/AIDS while featuring major international acts.