thE BEst lEsson thE Author wAnts his ChilDrEn to lEArn is
A．how to mAkE thEir monEy go long.
B．how to spEnD thEir monEy thriFtily.
C．how to mAkE A rEAsonABlE BuDgEt.
D．how to work with thEir FinAnCiAl min