Option 1: Ligament

Ligament is a connective tissue that connects bones to other bones, providing stability and support to joints. It is composed of dense fibrous tissue and collagen fibers.

Option 2: Tendon

Tendon is also a connective tissue that connects muscle to bone. It is responsible for transmitting the force generated by muscle contraction to move the bone.

Option 3: Smooth muscle

Smooth muscle is not a connective tissue. It is a type of muscle tissue that is responsible for the contraction of hollow organs, such as the intestines, blood vessels, and uterus. Unlike connective tissue, smooth muscle tissue is non-elastic and composed of muscle cells that are spindle-shaped and lack striations.

Option 4: Cartilage

Cartilage is another type of connective tissue. It is a flexible and resilient tissue that provides support and cushioning to various parts of the body, such as the joints, ears, nose, and trachea.

In conclusion, option 3 - Smooth muscle, is not a connective tissue. Connective tissues are responsible for connecting, supporting, and protecting various parts of the body.