Answer :

It should be A. :) :3 Good luck on your math!!
the answer is A because to round a number to the nearest 100th is 2 numbers after decimal 
now you must be thinking why B is not the answer because that has 2 numbers after decimal
it is not because when the last number is greater then 5 it will add one number if it is less than one then stays the same and if = 5 you have choice you can add one or keep it the way it is