These muscles are voluntary muscles. These work according to our will. We can move our legs when we want to, so our leg muscles are striated or voluntary muscles.

Striated muscles, also known as skeletal muscles, are a type of muscle tissue that is responsible for voluntary movement in the body. They are called striated muscles because they have a striped or striated appearance under a microscope. These muscles are attached to the skeleton and enable movement by contracting and relaxing.

The correct answer to the question is option 'C' - striated muscles are found in leg muscles.

- Skeletal muscles: The muscles in our legs, arms, torso, and other parts of the body that we can consciously control are all examples of striated muscles. They are attached to the bones by tendons and allow us to walk, run, jump, and perform various other movements.

- Gall bladder: The gall bladder is an organ located beneath the liver and is responsible for storing and concentrating bile. It is not made up of striated muscles, but rather smooth muscles that contract to release bile into the small intestine.

- Wall of bronchi: The bronchi are the main air passages in the lungs that connect the trachea to the lungs' smaller airways called bronchioles. The walls of the bronchi are made up of smooth muscles that are responsible for controlling the diameter of the airways, allowing for the regulation of airflow. They are not striated muscles.

- Lungs: The lungs are vital organs responsible for respiration. They do not contain striated muscles. However, they do contain smooth muscles in the bronchi and bronchioles, which help regulate airflow.

In summary, striated muscles are found in leg muscles (option 'C'). They are responsible for voluntary movements and are attached to the skeleton. They are not found in the gall bladder, wall of bronchi, or lungs.