George Washington Carver freely gave his discoveries and inventions to farmers. What does this say about his character?

George Washington Carver freely gave his discoveries and inventions to farmers. What does this say about his character?
A He found happiness and honor in being helpful to the world.
B He cared only about a quiet life, being a very shy and quiet man.
C He lacked the confidence to properly market his inventions.
D He was very worried people would gain weight from sweet potatoes.