D. Increased intake of sodium.
C. sliced bananas, walnuts and orange sections
It would be D. because nothing can be 100% you can still get pregnant from all of those things.
hope i helped! :) <span />
Journaling helps organization
search studytee on the net for how to get good grades and how to take notes
A is the answer. This is because this was not covered by the Twin studies.
Good luck!
-RxL