This isn't a badly worded questions.
B is right b/c it is from alcoholism which they are trying to tell you is the etiology of this patient's pancreatitis. Alcoholsim in and of itself will cause a macrocytosis even WITHOUT B12/folate deficiency.
A, C, D, and E are all wrong because they are common, secondary findings from pancreatitis.
while leukocytosis is associated with pancreatitis, it does not point to a specific etiology of pancreatitis. '
Low Ca is from soap formation, secondary to pancreatitis, not the cause.
High glucose- I thing they are getting at secondary diabetes here. Not sure.
High sodium is from dehydration- an assocaition but not a causation of pancreatitis