Answer:
Practice and determination.
Answer:
Airplane crash.
Explanation:
Billy knows the airplane will crash, but he says nothing. The passengers are entertained by a barbershop quartet. The group sings lewd, racist songs to entertain Billy's father-in-law. When the plane crashes into Sugarbush Mountain, Vermont, everyone is killed except Billy and the copilot.
I would say that remedy/recompense is the correct answer. Recompense means to compensate or make amends.