Which action do believe was the strongest proof of gary’s commitment to integration? explain your answer. giving out extra points

Raymond Dancel Gary is the first governor of Oklahoma who was born in Oklahoma. He became the Fifteenth Governor on January 10, 1954. One of his first, and certainly memorable actions, was to remove the inscriptions "white only" and "coloured only" from the toilet in Capitol. He intended to implement his decision in accordance with the decision of the Supreme Court, which proclaimed segregation in public schools unconstitutional. He succeeded in fostering an amendment to the state Constitution, which rejected the funding of separate schools for black people and whites. This action is the strongest proof of Gary's commitment to integration.

answer; i believe that the correct answer is (d); //declaration of independence; plz check first good luck

the answer is "by providing data about careers and annual mean wages"