Which Enzyme is Unsuitable as a Marker Enzyme?

[Turkish]

Hey, this is a multiple choice with a explanation as to which enzyme is unsuitable as a marker enzyme, and i actually have no idea!

a. Glutamate dehydrogenase
b. Cytidylyl transferase
c. Succinate dehydrogenase
d. Acid phosphatase
e. Malate dehyrogenase
f. Citrate synthase
g. Glucose-6-phosphatase

perhaps a little explanation would be nice too! thanks!

 

[chemisttree]

Do you know where these enzymes are located (specifically-located)? If not, you have some work to do, eh?