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

Which of the following definitions best describes 'negative regulation of cyanophore differentiation'?

A. Any process that stops, prevents, or reduces the frequency, rate or extent of erythrophore differentiation.
B. Any process that stops, prevents, or reduces the frequency, rate or extent of cyanophore differentiation.
C. Any process that activates or increases the frequency, rate or extent of cyanophore differentiation.
D. Any process that stops, prevents, or reduces the frequency, rate or extent of xanthophore differentiation.

Answer: Any process that stops, prevents, or reduces the frequency, rate or extent of cyanophore differentiation.