Final answer:
Tendons and ligaments are primarily made up of dense regular connective tissue, which has collagen fibers aligned in parallel, providing strength and resistance to stretching.
Step-by-step explanation:
Tendons and ligaments are composed primarily of c. dense regular connective tissue. This type of tissue contains more collagen fibers than loose connective tissue, which gives it greater resistance to stretching. Dense regular connective tissue has fibers that are parallel to each other, enhancing its tensile strength and resistance to stretching in the direction of the fiber orientations. This alignment is crucial for the function of tendons, which connect muscles to bones, and ligaments, which connect bones to bones, allowing them to withstand the force and tension they encounter during movement and support.