The correct option is this: HANDS FLEXING INWARD.
Carpopedal spasm is a a medical condition in which the hands and the feet of the affected undergo involuntary muscle contraction. The condition is associated with tingling and cramping sensations. Although it always occur for a brief time, it can be severely painful. The condition usually occur in association with some diseases such as hypoparathyroidsm and hypocalcemia.