Final answer:
The vastus lateralis is a quadricep muscle found on the lateral aspect of the thigh, making B) Thigh the correct answer.
Step-by-step explanation:
The vastus lateralis is a muscle located on the lateral aspect of the thigh, and it is one of the quadriceps muscles. Therefore, the answer to the question 'Where would you find the vastus lateralis?' is B) Thigh. The vastus lateralis, along with the vastus medialis, vastus intermedius, and rectus femoris, make up the quadriceps group, which is crucial for activities like walking, running, and jumping as it extends the knee and stabilizes the leg. While the vastus medialis is on the medial aspect of the thigh, the vastus intermedius is between the vastus lateralis and medialis and is deep to the rectus femoris, which lies in the anterior compartment of the thigh.