Answer:
0.0100: three significant figures
Explanation:
The rules are:
a) we consider the non-zero digits to be significant.
b) The zeros which lie in between two non zero digits are considered to be significant
c) The zero in the decimal portion is significant.
Let us check the significant figures:
A) 0.010 : two significant figure
B) 0.01 : one significant figure
C) 0.01000 : four significant figure
D) 0.0100: three significant figures
