Answer:
A. He was a U.S. senator for 38 years.
Step-by-step explanation:
Richard Brevard Russell was an American politician who achieved a lot during his lifetime. He was actively involved in the political scene till his death, dying while still in office.
He became the Governor of the state of Georgia in 1931 till 1933.
He also brought forth the National School Lunch Act, acting as its chief sponsor.
He also became a senator in the United States Senate as a democrat, starting office on November 8, 1932, and getting reelected in 1936, 42, 48, 54, 60 and 66, thus serving from January 12 1933 till his death in January 21, 1971.
Thus, the statement that is true about Richard B. Russell is that he served as a U.S. Senate for almost 40 years, 38 years to be exact.