Tendons and ligaments are primarily composed of fibrous connective tissue. This type of tissue is specialized for strength and flexibility, making it ideal for connecting muscles to bones (tendons) and bones to other bones (ligaments).
Fibrous connective tissue is dense and contains a high concentration of collagen fibers. These fibers provide tensile strength, allowing tendons and ligaments to withstand the stresses placed upon them during movement and physical activity. Unlike adipose tissue, which stores fat, or cartilage, which provides cushioning, fibrous connective tissue serves a different purpose related to the structural integrity and support of the body.
In summary, the correct answer is b) fibrous connective tissue, as it is the key tissue responsible for the formation of both tendons and ligaments.