Answer:
MacArthur had publicly criticized Truman's approach to the war.
Explanation:
Harry S. Truman was an American politician and statesman who was elected as the 33rd President of the United States of America. Truman was born on the 8th of May, 1884 in Lamar, Missouri, United States of America.
He served as the President of the United States of America for eight years, from the 12th of April, 1945 to the 20th of January, 1953.
General Douglas Macarthur was the commander of United Nations Command forces fighting in the
The Korean War (Fatherland Liberation War) was a war between South Korea and North Korea. This war started on the 25th of June, 1950 due to the invasion of South Korea by North Korea contrary to the 38th parallel.
The United States of America got involved in the war so as to completly stop the spread of communism.
However, General Douglas Macarthur was dissatisfied with the handling of the war and consequently, made public statements that were contradictory with the administrative policies of the government of the United States of America.
Hence, the statement which best describes why President Truman fired General Douglas MacArthur on the 11th of April 1951 was that MacArthur had publicly criticized Truman's approach to the war.