The enzyme lipase converts

The function of erepsin in the process of digestion is to convert

Which one of the following is the correct matching of the site of action on the given substrate,the enzyme acting upon it,and the end product?

Lipase of succus entericus converts lipid into...

$A$: Gastrectomy causes iron deficiency anaemia.
$R$: Hydrochloric acid secreted by oxyntic cells converts ferric into ferrous and iron is absorbed as ferrous ions.

Match the following:

Column-$I$	Column-$II$
$(a)$ Nuclease	$(i)$ Nucleotide
$(b)$ Nucleotidases	$(ii)$ Monoglycerides
$(c)$ Nucleosidases	$(iii)$ Nucleic acid
$(d)$ Lipases	$(iv)$ Nucleoside