Which of the following correctly describes what is happening as you stand up after sitting on a log in front of a camp fire.

a.A patella tendon was initiated to produce the movement.
b.The quadriceps will contract concentrically at the hip joint.
c.The hamstrings will be contracting concentrically at the hip joint.
d.As you stand up, flexion will occur at your knee joint.
e.You will be performing an open chain movement in the lower limbs.