What muscles comprise the quadriceps muscle group?
A . Biceps femoris, tensor fasciae latae, semimembranosus, semitendinosus
B . Rectus femoris. vastus medialis. vastus lateralis, vastus intermedius
C . Gastrocnemius, soleus, posterior tibialis, popliteus
D . Adductor magnus. adductor longus, adductor brevis. vastus medialis
Answer: B