Assertion : Tendons attach one bone to another bone
Reason : Ligaments attach skeletal muscles to bones.
A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false

Hint: In mammals, a bone is a hard tissue that is a part of the vertebrate body. Bones protect the body's different organs, create red and white blood cells, store minerals, provide the body stability and support, and allow mobility.

Complete solution:
A tendon, also known as a sinew, is a tough fibrous connective tissue band that binds muscle to bone and can sustain stress. Tendons and ligaments are also collagen-based structures. Tendons bind muscle to bone, while ligaments connect one bone to another.
Ligaments are tough elastic tissue bands that surround the joints. They bind your bones, provide protection for your joints, and restrict their mobility. Our feet, hips, elbows, shoulders, and other joints are all surrounded by ligaments. Your joints can become fragile if you stretch or break them.
The tendon is a translucent fibrous tissue. A skeletal muscle's tendon binds it to the body. It's stiff and inflexible. Ligament is made up of yellow elastic tissue with some collagen fibres and is solid and elastic. Ligament is a connective tissue that binds one bone to another.

Hence, option D is the correct answer

Note:
Many of the bones and joints in the body are part of the skeletal structure. Each bone is a living organ composed of numerous cells, protein fibres, and minerals. The skeleton serves as a scaffold for the soft tissues that make up the rest of the body, providing shelter and protection.