Connective tissue is:

Which of the following statement$(s)$ is/are correct?
$(i)$ Loose connective tissue contains fibroblasts,macrophages and mast cells.
$(ii)$ Adipose tissue is a type of dense connective tissue located mainly beneath the skin.
$(iii)$ Tendons and ligaments are examples of dense connective tissue.
$(iv)$ Cartilage and bones are types of specialized hard connective tissue.

Mast cells are found in . . . . . . .

Which of the following has a hard and non-pliable ground substance?

Below the skin,the fat is stored in the form of:

Connective tissue is derived from which germ layer?