Biomolecules Part 2

Based on biomolecules theory and structure of these named compounds -
(A) α-Glucose and α-Galactose (IV) Epimers.
(B) α-Glucose and β-Glucose (III) Anomers
(C) α-Glucose and α-Fructose
(I) Functional isomers
(D) α-Glucose and α-Ribose
(II) Homologous