* Blood: Blood is made up of several types of specialized cells:

* Red blood cells: Carry oxygen throughout the body.

* White blood cells: Fight infections and diseases.

* Platelets: Help with blood clotting.

* Muscle: There are three types of muscle tissue, each with specialized cells:

* Skeletal muscle: Attached to bones, responsible for movement.

* Smooth muscle: Found in organs like the stomach and intestines, responsible for involuntary movements.

* Cardiac muscle: Found only in the heart, responsible for pumping blood.

* Bone: Bone tissue is made up of specialized cells called osteocytes. These cells help to maintain and repair the bone structure.

Therefore, all of the options (blood, muscle, and bone) are composed of specialized cells that perform specific functions within the body.