Task: Class Definition Understanding (ontology: Food_Agriculture/Crop_Ontology)

Which of the following definitions best describes 'Hydroxyphenylaldehyde/Syringaldehyde/Coniferaldehyde contents'?

A. Assessment of the concept in the population
B. Cork chemical composition in cellulose
C. Protein content in leaves
D. Ratio between Hydroxyphenyl (H) Syringyl (S) and Guaiacyl (G) contents

Answer: Ratio between Hydroxyphenyl (H) Syringyl (S) and Guaiacyl (G) contents