The sample of a healthy human blood is

You are required to draw blood from a patient and to keep it in a test tube for the analysis of blood corpuscles and plasma. You are provided with the following four types of test tubes. Which of them will you $NOT$ use for this purpose?

Match the following columns:

Column-$I$ (Blood Group)	Column-$II$ (Can donate blood to)
$P$. $A$	$I$. $AB$
$Q$. $B$	$II$. $B, AB$
$R$. $AB$	$III$. $A, B, AB, O$
$S$. $O$	$IV$. $A, AB$

What are the cellular components of blood?

Persons with blood group $A$ contain:

Match the type of blood cells in Column $I$ with their respective structure in Column $II$ and function in Column $III$ and select the correct option given below.

Column $I$	Column $II$ $\&$ $III$
$I$. Erythrocytes	$D$. Enucleated,biconcave circular in shape; $N$. Transport of gases $O_2$ and $CO_2$.
$II$. Neutrophils	$A$. Spherical large cells,nucleus with many lobes; $O$. Phagocytic in function.
$III$. Lymphocytes	$C$. Spherical nucleus,agranular cytoplasm; $M$. Humoral and cell-mediated immunity.
$IV$. Thrombocytes	$B$. Cellular fragments small,oval shaped; $L$. Clotting of blood.