Which answer matches this clue: the swimmer who set 11 world records and won Olympic gold in the 200 metres freestyle in 2008?

• A Alessia Filippi
• B Novella Calligaris
• C Simona Quadarella
• D Federica Pellegrini ✓

Federica Pellegrini is the only swimmer to have competed in five Olympic finals in the same event, medalling in the 200 m freestyle each time.