$(I)$ Glucose
$(II)$ Fructose
$(III)$ Maltose
$(IV)$ Sucrose
$(V)$ Galactose
$(A)$ Albumin is a simple protein
$(B)$ The amino acid alanine contains an acidic side chain
$(C)$ Insulin is a hormone
$(D)$ Muscles contain the protein keratin
Point out the wrong statements in the above set of statements