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

Which of the following definitions best describes 'positive regulation of thymocyte migration'?

A. Any process that activates or increases the frequency, rate or extent of thymocyte migration.
B. Any interneuron that is part of a spinal cord ventral column.
C. Any process that stops, prevents or reduces the frequency, rate or extent of thymocyte migration.
D. Any process that increases the rate, frequency or extent of T cell chemotaxis. T cell chemotaxis is the directed movement of a T cell in response to an external stimulus.

Answer: Any process that activates or increases the frequency, rate or extent of thymocyte migration.