What is a significance of the Supreme Court decision Humphrey's Executor vs. United States?

The outcome: The Supreme Court ruled unanimously that the President could not remove a Federal Trade Commissioner for a cause other than "inefficiency, neglect of duty, or malfeasance in office." In brief: President Franklin D. Roosevelt asked William E. Humphrey, a member of the Federal Trade Commission, to resign.

Explanation:

the answer is option a.

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.