<prompt> Pedzisa mutsara unotevera: Čavić akamiririra Serbia paMitambo yeOlympic yeZhizha ya2012 muLondon, England, achiita kuti ive mhedziso yake yemitambo. Akakwanirisa nokuda kwe  <response>: 100 metres butterfly yokupedzisira uye yakabatanidzwa nokuda kwenzvimbo yechina. 