Final answer:
The true statement is: The calcaneal tendon is the common insertion tendon for the gastrocnemius and soleus.
Step-by-step explanation:
The statement that is true is:
d. The calcaneal tendon is the common insertion tendon for the gastrocnemius and soleus.
This means that the calcaneal tendon, also known as the Achilles tendon, is where both the gastrocnemius and soleus muscles attach to the calcaneal bone in the ankle.