How Do the Guarantees of Social Security and Medicare Create

How do the guarantees of Social Security and Medicare create a policy challenge?

A) Decision makers have to keep programs solvent as well as dealing with political barriers to making any cuts that would maintain their solvency.
B) Decision makers have to figure out to balance the requirements of funding these programs in the context of spending on other national needs.
C) Decision makers must determine how to adjust the benefits and the taxes that fund these programs to more effectively redistribute income.
D) Shifting control of these programs to independent agencies makes oversight a very challenging task.