Eukaryotic cells have organelles which may not bounded by a membrane

Eukaryotic cells have organelles which may
(i) not bounded by a membrane.
(ii) bounded by a single membrane.
(iii) bounded by a double membrane.
Group the various sub-cellular organelles into these categories.

(i) Ribosomes are membraneless organelle.
(ii) Lysosomes are single membrane bounded organelle. Sphaerosomes and microbodies are also have single membranes.
(iii) Mitochondria and plastids are double membrane bounded organelles.