Who was denied the right to sue states in federal courts as stated in Amendment 11?

Amendment 11 of the United States Constitution restricts the ability of individuals to sue a state in federal court. The correct answer highlights that citizens of other states cannot bring such lawsuits against a state. This provision was created to uphold the principle of state sovereignty, ensuring that states cannot be sued in federal court by citizens of a different state, thereby protecting states from being subjected to lawsuits by individuals who may not have a vested interest in that particular state.

In contrast, residents of the state being sued generally do have the right to take legal action against their own state; this is also true for citizens of the same state. Citizens of foreign countries, while also having limitations, do not fall under the specific provisions of Amendment 11 regarding suits against states. The overarching goal of the amendment is to preserve the autonomy of states by limiting the judicial power of federal courts in cases that could undermine that autonomy.