Physio Ex 9.0 Ex 9 Activity 6 Q 8 Help

So I needed some help with understanding question number 8 which is:

Consider this situation: you want to reabsorb Na+ ions but you do not want to increase the volume of the blood by reabsorbing large amounts of H2O from the filtrate. Assuming that aldosterone and ADH are both present, how would you adjust the hormones to accomplish the task?

I don't know why but I am having issues making my brain work at the moment... I keep thinking about the renin-angiotensin system i.e., angiotensinogen-> angiotensin 1 -> angiotensin 2 -> Adrenal cortex -> Aldosterone -> Na+ re-absorption... I don't know I think I am just burnt out. Any help? Thanks.