Question - Two D-aldopentoses give the same D-aldotetrose upon Ruff degradation (or Wohl degradation). The two aldopentoses are:
a) C-2 epimers
b) enantiomers
c) D-glucose and D-galactose
d) C-4 epimers
e) Meso compounds
Separate your answers with a comma. Show the process and each step.