Task: Text Categorization
Input (English): Question: The protection of a functional group, susceptible to hydrolysis, by the formation of a complex constitutes a procedure for stabilization of drugs in solution. Among the excipients used for this purpose are those that are made up of different glucose monomers with a cyclic arrangement and are called: 
 Options:  <0> Cyclodextrins. <1> Sorbitol <2> Citrates <3> Glucuronates <4> Propylene glycols
Output (English): pharmacology