Determine if each pair of molecules is best described as a pair of enantiomers, a pair of diastereomers, a pair of identical chiral molecules, two of the same meso molecule, constitutional isomers, or unrelated. Select the correct answer from the dropdown menus. The molecules in pair A are [ Select ] . The molecules in pair B are [ Select ] . The molecules in pair C are [ Select ] . The molecules in pair D are [ Select ] . The molecules in pair E are [ Select ] . The molecules in pair F are [ Select ] . The molecules in pair G are [ Select ] . The molecules in pair H are