Which of the Following Is True Regarding Zach's Legal Problems

Which of the following is true regarding Zach's legal problems in Zeno?

A) Zach can rely upon the federal statutory laws of the U.S. as a defense but not the U.S. Constitution.
B) Zach is entitled to all U.S. Constitutional rights in Zeno because he is a U.S. citizen, but he cannot rely on statutory law.
C) Zach can rely on U.S. laws as a defense only if he obtains an opinion from the office of the U.S. attorney that his operations in the U.S. have strictly complied with the law.
D) Zach must obey the laws of Zeno when operating a business in Zeno and cannot rely upon U.S. laws as a defense.
E) Zach can rely upon the federal statutory laws of the U.S. as a defense. Additionally, Zach is entitled to all U.S. Constitutional rights in Zeno because he is a U.S. citizen.