A researcher is suddenly granted a significant amount of money for her study and realizes that she can increase the size of her sample from 200 to 1800. If she decides to do this, what will happen to the size of her margin of error? a. It will be multiplied by 3.

b. It will be divided by 9.

c. It will be divided by 3.

d. It will remain unchanged as long as the confidence level remains the same.

e. It will be multiplied by 9.