Your Patient Has an "Extensor Lag" of the MP Joint

Your patient has an "extensor lag" of the MP joint.The exercise of choice to remediate this problem is which of the following?

A) While stabilizing the IP joints of one finger in extension, passively extend the MP joint of that finger.
B) Have the patient move actively from the straight fist position to the tabletop position of the hand.
C) Have the patient move actively from the full fist position of the hand to the tabletop position.
D) Have the patient move actively from the full fist position of the hand to the hook fist position.