Final answer:
The correct answer is e. A, B and C are correct. The muscles that flex the leg and extend the thigh are found in the posterior compartment of the thigh, include the semimembranosus and semitendinosus, and are collectively known as the hamstrings.
Step-by-step explanation:
The muscles that flex the leg and extend the thigh: a. are found in the posterior compartment of the thigh b. include the semimembranosus and the semiendinosus c. are collectively called the hamstrings d. A and B are correct e. A, B and C are correct.
The correct answer to this question is e. A, B and C are correct. The posterior compartment of the thigh includes three long muscles known as the hamstring group, which are the biceps femoris, semitendinosus, and semimembranosus. These muscles are involved in flexing the leg at the knee and extending the thigh at the hip. The tendons of these muscles contribute to forming the popliteal fossa at the back of the knee.