Bones act as a frame to which are attached for movement.
cartilage
organs
striated muscles
cardiac muscles

The three types of muscular tissue are skeletal, smooth and cardiac. Skeletal muscles are muscles which are attached to the bone. Their main function is to help with skeletal movements. The smooth muscles are also known as involuntary muscles. We are unable to control their movements. It is found in the walls of organs such as the stomach and the bronchi. Lastly, the cardiac muscle is the heart muscle. It is only found in the walls of the heart. Structurally, it is a combination of the skeletal muscle type as well as the smooth muscle type

When you are making a guess you are forming a hypothesis

idk but if i had to take an educated guess i’d say a c d