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

Which of the following definitions best describes 'Cercospora leaf spot resistance'?

A. Plant resistance to powdery mildew caused by the agent Erysiphe polygoni.
B. Plant resistance to Cercospora leaf spot (CLS) caused by the agent Cercospora canescens.
C. Plant resistance to bacterial leaf spot (BLS) caused by the agent Xanthomonas phaseoli.
D. Resistance to storage insect pest Callosobruchus chinensis (bruchid).

Answer: Plant resistance to Cercospora leaf spot (CLS) caused by the agent Cercospora canescens.