coenzymes?

Can you help me identify the following coenzymes and the vitamins from which it is derived?

a. cosubstrate for the reduction of a ketone (such as pyruvate) to a secondary alcohol
b. cosubstrate for the oxidation of a primary alcohol (such as ethanol) to an aldehyde (such as acetaldehyde)
c. prosthetic group for ATP-dependent carboxylation and aldehyde-transfer reactions, such as the decarboxylation of pyruvate to form oxaloacetate
d. prosthetic froup for decarboxylation and aldehyde-transfer reactions, such as the decarboxylation of pyruvate to form acetaldehyde
e. cosubstrate for transfer of formyl or methylene (hydroxymethyl groups
f. cosubstrate for transferof acetyl (two carbon) or longer acyl groups
g. prosthetic group for the removal and replacement of groups the alpha-carbon of amino acids