The Stock Market Crash of 1929 Probably Contributed ____ to the Great

The Stock Market Crash of 1929 probably contributed ____ to the Great Depression because _____.

A) little, it did no more than wipe out the speculative gains made earlier.
B) little, the Fed responded by increasing the money supply.
C) a good deal, corporations could no longer raise investment funds.
D) a good deal, consumer confidence and spending on durables were reduced.