What medications have a frequency of twice a day? 
a) DEXTROSE 5% IN 0.9% NACL 4 mL 
b) Diazepam 0.005 MG/MG Prefilled Applicator [Diastat] 
c) Benztropine mesylate 1 MG/ML Injectable Solution [Cogentin] 
d) Phenytoin sodium 100 MG Extended Release Oral Capsule [Dilantin]