The united states supreme court case United States v. Nixon led to

A. gaining executive privilege
B. limits to executive privilege
C. Nixon keeping the tapes private
D. Nixon losing his re-election

I think its A but need some help

No.

http://en.wikipedia.org/wiki/United_States_v._Nixon

The United States Supreme Court case United States v. Nixon did not actually lead to gaining executive privilege. In fact, the case resulted in establishing limits to executive privilege. Executive privilege refers to the President's ability to resist certain subpoenas and other legal demands for information.

In this case, President Richard Nixon attempted to invoke executive privilege to withhold tapes and documents related to the Watergate scandal. The Supreme Court ruled unanimously against Nixon, stating that while the President does have a valid interest in confidentiality, it is not absolute and can be limited when it hinders the fair administration of justice.

Therefore, the correct answer is B. The case United States v. Nixon led to limits to executive privilege.