<prompt> Which of the following is enantiomera D Glucose and L Glucoseb D Fructose and L Fructosec D Mannose and L Mannosed D Glyceraldehyde and L Glyceraldehyde.  <response>: Explanation- Enantiomers D and L isomerism - D sugars are naturally occurring. Examples areD Glucose and L GlucoseD Fructose and L FructoseD Mannose and L MannoseD Glyceraldehyde and L Glyceraldehyde 