Find the option with 5 significant figures
Rules of significant figures
Explanation of correct option
Option C,
Here are significant since they are non-zero digits, since the zero's lie in between these significant figures, they are also significant. So has five significant figures.
Explanation of incorrect options
Option A,
Here are significant since they are non-zero digits, the two zero's at the first are insignificant, and the zero in between the significant numbers is significant. So has four significant figures.
Option B,
Here are significant since they are non-zero digits, the zero in between the significant numbers is significant. So has four significant figures.
Option D,
Here are significant since they are non-zero digits, the zero in between the significant numbers is significant. So has four significant figures.
Therefore, Option C is correct