challenge: What is the systematic name of the enzyme 9,12-octadecadienoate 8-hydroperoxide 8S-isomerase?
  
  A. (7R,8R,9Z,12Z)-7,8-dihydroxy-9,12-octadecadienoate mutase
  B. (9Z,12Z)-9,12-octadecadienoate 8-hydroperoxide isomerase
  C. (7S,8S,9Z,12Z)-7,8-dihydroxy-9,12-octadecadienoate hydroxymutase
  D. (8R,9Z,12Z)-8-hydroperoxyoctadeca-9,12-dienoate hydroxymutase
  Answer: 