Arrange these decimals from least to greatest.
0.56, 0.60, 0.056, 0.060, 6.00
0.056, 0.060, 0.56, 0.60, 6.00
6.00, 0.60, 0.56, 0.60, 0.056
6.00, 0.56, 0.060, 0.6, 0.056
25.