His presidency saw the passage of the Pure Food and Drug Act, which established the Food and Drug Administration to regulate food safety, and the Hepburn Act, which increased the regulatory power of the Interstate Commerce Commission.
In foreign policy, he focused on Central America where he began construction of the Panama Canal. He modernized the U.S. Army and expanded the Navy. He sent the Great White Fleet on a world tour to project American naval power.
Hope u got it. (◠‿・)—☆
Options A, and D are the right answers, that he established Duma, and freed the slaves.
In his October manifesto of 1905, Tsar Nicholas II ( the emperor of Russia who ruled between 1894 and 1917), established the Duma (a representative assembly). And in 1861, he introduced significant agrarian reforms and hence, he declared all the serfs to be freed.
Other options do not come under his reforms as russification was the name of the policy of the Alexander III, and Peter the great the first emperor of Russia who established the constitutional monarchy.