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

Which of the following definitions best describes 'tartrazine'?

A. An organic sodium salt that is monosodium salt of the concept sulfonic acid. Isolated from an undescribed marine sponge of the genus Euryspongia collected in Palau, it is cytotoxic and exhibits antifungal activity against both amphotericin B-resistant and wild-type strains of Candida albicans.
B. An organic sodium salt which is the disodium salt of estramustine phosphate.
C. The sodium salt of diclofenac.
D. An organic sodium salt which is the trisodium salt of the concept acid. A synthetic lemon yellow azo dye used as a food colouring.

Answer: An organic sodium salt which is the trisodium salt of the concept acid. A synthetic lemon yellow azo dye used as a food colouring.