Biology

The correct answer is B.Nucleus.

The nucleus controls the cell by regulating gene expression, which in turn dictates the cell's activities, including growth, metabolism, and reproduction. The nucleus contains the cell's DNA, which holds the instructions for building proteins and other critical cellular components.

Here's a brief explanation of the roles of the other organelles:

A.Lysosomes: These are responsible for breaking down waste materials and cellular debris, but they do not contro...