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

Which of the following definitions best describes 'Rust assessment'?

A. Visual assessment of 1-5 affected plants with rust
B. Appearance of plant or plant part in low temperature weather
C. Appearance of plants in response to flooding
D. At maturity, observe the abundance of primary branches

Answer: Visual assessment of 1-5 affected plants with rust