Instructions: Refer to the structure below to answer the following questions. Refer to ...

Instructions:
   
  Refer to the structure below to answer the following questions.
   
 
  Refer to instructions. (S)-(-)-Serine:
   
  a.
  is dextrorotatory
  b.
  rotates plane-polarized light in a counterclockwise direction
  c.
  rotates plane-polarized light in a clockwise direction
  d.
  is racemic
   
  Refer to instructions. (S)-(-)-Serine:
   
  a.
  is dextrorotatory
  b.
  rotates plane-polarized light in a counterclockwise direction
  c.
  rotates plane-polarized light in a clockwise direction
  d.
  is racemic
   
  Refer to instructions. (S)-(-)-Serine:
   
  a.
  is dextrorotatory
  b.
  rotates plane-polarized light in a counterclockwise direction
  c.
  rotates plane-polarized light in a clockwise direction
  d.
  is racemic