Which are the undifferentiated cells of loose connective tissue?

Refer to the given figure and identify the correct characteristic features.
$(i)$ It is a type of loose connective tissue.
$(ii)$ It contains fibroblasts,macrophages,collagen fibres,and mast cells.
$(iii)$ The cells of this tissue are specialized to store fats.
$(iv)$ It forms the inner lining of blood vessels,stomach,and intestine.

The function of the Haversian canal is:

The skeletal tissue consists of an organic matrix called as

$A$ - Adipose tissue is a type of connective tissue.
$R$ - It serves as a support framework for the epithelium.

Haversian canals are found in