The correct option is A centrosome
Centrosomes are organelles found in animal cells. They are made up of two cylindrical structures called centrioles that lie at right angles to one another. They lie close to the nucleus in an amorphous proteinaceous region. The centrioles help in the formation of the spindle fibers during cell division.
The endoplasmic reticulum is a network of membrane bound organelles extending from the outer membrane of the nucleus to the plasma membrane.
The golgi complexes are membrane bound organelles pinched off from the endoplasmic reticulum. They are called the ‘packaging organelle’ of the cell.
The lysosomes are commonly called the ‘suicide bags’ of the cell and are filled with hydrolytic enzymes which help in the breakdown of the waste products of the cell.