Task: Class Definition Understanding (ontology: Sciences/Biology)

Which of the following definitions best describes 'L-rhamnulose 1-phosphate(2-)'?

A. Conjugate base of N(omega)-phospho-L-arginine having anionic carboxy and phosphate groups and protonated amino and guanidino nitrogens.
B. An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of L-rhamnulose 1-phosphate; major species at pH 7.3.
C. An organophosphate oxoanion that is the dianion of alpha-D-Man-(1->3)-beta-D-Glc-(1->4)-alpha-D-Glc-1-diphospho-ditrans,polycis-undecaprenol arising from deprotonation of both free diphosphate OH groups; major species at pH 7.3.
D. An orpanophosphate oxoanion that is the trianion of ditrans,polycis-decaprenyl diphosphate.

Answer: An organophosphate oxoanion arising from deprotonation of the phosphate OH groups of L-rhamnulose 1-phosphate; major species at pH 7.3.