The Supreme Court case that overturned the doctrine of "separate but equal" was "Plessy v. Ferguson".
<u>Answer:</u> Option B
<u>Explanation:</u>
"Plessy v. Ferguson" was the U.S. Supreme Court's decision that lifted the constitutionality to racial isolation laws for public needs and development as long as the separated facilities were upto mark in quality a belief that came out was termed as "separate but equal".
The decision included Homer Plessy case which was generated in 1892 when seven-eighths white and one-eighth black ancestry called as "octoroon" , the resident of New Orleans intentionally violated "Louisiana's Separate Car Act of 1890", which demanded "equal, but separate" non-white and white passenger's train car accommodations.
Because they were better (still editing)
The President has the power either to sign legislation into law or to veto bills enacted by Congress, although Congress may override a veto with a two-thirds vote of both houses. The Executive Branch conducts diplomacy with other nations, and the President has the power to negotiate and sign treaties, which also must be ratified by two-thirds of the Senate. The President can issue executive orders, which direct executive officers or clarify and further existing laws. The President also has unlimited power to extend pardons and clemencies for federal crimes, except in cases of impeachment.
So I think the answer is b. The President may veto Conressional legislation.