Match List I with List II

List I		List II
A	Nucleolus	I	Site of formation of glycolipid
B	Centriole	II	Organization like the cartwheel
C	Leucoplasts	III	Site for active ribosomal RNA synthesis
D	Golgi apparatus	IV	For storing nutrients

Choose the correct answer from the options given below:

The correct option is A-III, B-II, C-IV, D-I.

Let us analyze and match the cellular components in List I with their descriptions/functions in List II:
1. Nucleolus (A): The nucleolus is a prominent sub-nuclear structure where ribosomes are assembled. It serves as the primary site for active ribosomal RNA (rRNA) synthesis. Therefore, A matches with III.
2. Centriole (B): A centriole is a cylindrical organelle composed mainly of a protein called tubulin. When viewed in cross-section, it shows a characteristic "cartwheel" arrangement consisting of nine evenly spaced peripheral triplets of microtubules surrounding a central hub. Therefore, B matches with II.
3. Leucoplasts (C): Leucoplasts are a category of plastids that lack pigments and are specialized for storing nutrients. For example, amyloplasts store starch, elaioplasts store oils/fats, and aleuroplasts store proteins. Therefore, C matches with IV.
4. Golgi apparatus (D): The Golgi apparatus plays a key role in post-translational modification, packaging, and sorting of proteins and lipids. It is the major site of formation of glycoproteins and glycolipids. Therefore, D matches with I.

Combining these individual matches, we get:
A - III, B - II, C - IV, D - I