# The reagent which forms crystalline osazone derivative when reacted with glucose, is

$\begin{array}{1 1}(a)\;\text{Fehling solution}\\(b)\;\text{Benedict solution}\\(c)\;\text{Phenylhydrazine }\\(d)\;\text{Hydroxylamine}\end{array}$

Phenylhydrazine
Hence (c) is the correct answer.