Glucose is a

Which among the following is the simplest sugar?

Consider the following molecules:
Glucose $(K)$,Mannose $(L)$,Galactose $(M)$,$\alpha-Glucose$ $(N)$,$\beta-Glucose$ $(O)$
The correct set of epimer and anomer is respectively:
Epimer - Anomer

What are the anomers of glucose?

Glucose molecule reacts with $X$ number of molecules of phenylhydrazine to yield osazone. The value of $X$ is

Reducing saccharides among the following are:

Sucrose	Ribose	Maltose	Lactose	Cellulose
$1$	$2$	$3$	$4$	$5$