For Significant Digits and Calculations,the Following Statements Are True,EXCEPT for Which

For significant digits and calculations,the following statements are true,EXCEPT for which one(s) ?
I Addition and subtraction―round off the answer according to the number of decimal places in the number with the most decimal places.
II Multiplication and division―the answer is limited to number of digits in the number with the fewest significant digits.
III Logarithms and antilogarithms ―the number of significant figures in the antilogarithm should equal the number of digits in the mantissa.

A) I
B) II
C) III
D) I and II
E) I and III