When Discussing Patellar Movement,which of the Following Best Describes the J

When discussing patellar movement,which of the following best describes the J sign?

A) As the knee moves from flexion into extension, the patella glides superiorly and tracks slightly medially.
B) As the knee moves from flexion into extension, the patella glides superiorly and tracks slightly laterally.
C) As the knee moves from flexion into extension, the patella glides inferiorly and tracks slightly laterally.
D) As the knee moves from flexion into extension, the patella glides inferiorly and tracks slightly medially.