What is most likely the meaning of the phrase "yellow light thrown upon the color of his ambitions"?

A: It shows Henry's hesitation about leaving the familiarity of home to go to war with strangers.

B: It conveys the mother's desire for her son to slow down and be cautious about his decision.

C: It highlights the mother's belief that her son lacks the courage necessary to survive in battle.

D: It demonstrates Henry's pride in his decision to leave
the farm to fight for a cause he believes in.

Help me out ily