challenge: What were some of Roswell Lyman Colt's notable endeavors?
  
  A. He was a prominent figure in the shipping industry, served as governor of the Society for Establishing Useful Manufactures, and was an early railroad executive.
  B. He was a celebrated author and poet, known for his literary contributions to American literature.
  C. He was a skilled politician, serving as a U.S. Senator and Representative.
  D. He was a renowned scientist and inventor, known for his work in physics and mathematics.
  Answer: 