This polish military officer served as a brigadier general in the cavalry of george washington's continental army.

This Polish military officer was Kazimierz Pułaski, or Casimir Pulaski.

Pulaski fought on the side of the American patriots against the British army in the Revolutionary War. He is also known as the “father of the American cavalry,” Pulaski participated in military actions against Russian invaders, particularly in Berdichev in 1768 and Czestochowa in 1770. When Poland was divided by Prussians and Austrians, Pulaski went to Paris, where he met Benjamin Franklin in 1776. Pulaski arrived in Philadelphia in 1777 with a letter of introduction from Franklin to George Washington. Within six months Pulaski had shown his courage on battlefields at Brandywine, Pennsylvania, and Germantown, Pennsylvania in September and October. He was promoted to brigadier general and named the chief of the cavalry; he resigned six months later because of friction with part of his troop and went on to form a cavalry and infantry unit that was known as Pulaski’s Legion. Sent to the south, he fought at Charleston, South Carolina and then at the siege of Savannah, Georgia from September 23 to October 18, where he was wounded on October 9, 1779. He was sent to Charleston aboard the brigantine Wasp, but he died on October 15th that year and was buried at Greenwich Plantation, Georgia.

the answer is b, encourage free trade