Which of the following is the odd one out?

What is meant by the Endomembrane system? Which cell organelles are included in it? Provide brief information.

Assertion $A$: Organelles in eukaryotic cells are membrane-bound.
Reason $R$: Organelles in prokaryotic cells are non-membrane-bound.
Which option is correct for Assertion $A$ and Reason $R$?

Which group of organelles is not part of the endomembrane system?

Name the cellular organelle that is composed of nucleoproteins.

Identify $X$ and $Y$ from the figure.