Who won the Gold medal in Women's 4 x 100m freestyle relay for Swimming at the 2012 Summer Olympics?

Australia

Alicia Coutts (53.90)

Cate Campbell (53.19)

Brittany Elmslie (53.41)

Melanie Schlanger (52.65)

Emily Seebohm

Yolane Kukla

Libby Trickett