Final answer:
The decimal representation of 0.057 is correctly represented by option C) 0.057.
Step-by-step explanation:
The decimal representation of 0.057 is simply written out as it appears.
This means that the correct answer is C) 0.057. There is no need for altering or moving the decimal point as it already represents the given value accurately.
When viewing the options provided: A) 0.57, B) 0.57 (which appears to be a duplicate of option A), C) 0.057, and D) 0.057 (which appears to be a duplicate of option C), the correct decimal representation is clearly option C.