Which joint actions of the lower extremity occur during the concentric phase of the movement?

Which joint actions of the lower extremity occur during the concentric phase of the movement?
A . Ankle dorsiflexion. knee flexion, and hip flexion
B . Ankle dorsiflexion. knee extension, and hip flexion
C . Ankle plantarflexion, knee flexion, and hip extension
D . Ankle plantarflexion, knee extension, and hip extension

Answer: D