Which of the following pairs are correctly matched?

Match List $- I$ with List $- II.$

List $- I$	List $- II$
$A$. Centromere	$I$. Mitochondrion
$B$. Cilium	$II$. Cell division
$C$. Cristae	$III$. Cell movement
$D$. Cell membrane	$IV$. Phospholipid Bilayer

Choose the correct answer from the options given below:

Which of the following pairs regarding cell structure and its function is mismatched?

Subcellular components can be separated by the help of . . . . . . .

Which of the following statements is/are correct?
$(i)$ The shape of the cells may vary with the function they perform.
$(ii)$ Human $RBC$ is about $7.0 \; \mu m$ in diameter.
$(iii)$ Cytoplasm is the main area of cellular activities.
$(iv)$ Various chemical reactions occur in cytoplasm to keep the cell in the living state.

Which of the following is a nuclear stain?