Economist Steve Landsburg Has Pointed Out That Ebenezer Scrooge's Change

Economist Steve Landsburg has pointed out that Ebenezer Scrooge's change in behaviour from miser to spender might actually be detrimental to the economy because

A) Scrooge's miserly saving helped contribute to the production of investment goods rather than consumption goods.
B) Scrooge was happiest when he was saving money, and happiness is the key to economic growth.
C) saving has to be greater than consumption for the economy to grow.
D) Scrooge's consumption habits were more detrimental to the environment than were his earlier saving habits.