The four sketches ($A, B, \mathrm{C,}$ and $D$) given below represent four different types of animal tissues.

Which one of these is correctly identified in the options given along with its correct location and function?


 

	Tissue	Location	Function
$\left(A\right)$	Simple squamous epithelium	Trachea	Diffusion boundary
$\left(B\right)$	Unicellular gland	Alimentary canal	Secretion
$\left(C\right)$	Bone	Larynx	Secretion
$\left(D\right)$	Compound epithelium	Skin	Protection