If a living cell were compared to a factory which part of the factory would be equivalent to the nucleus? 1) a closet used to store cleaning supplies
2) a computer that controls all activities
3) a machine that puts pieces together
4) the generator that provides energy to the entire factory

Explanation:

The nucleus of a cell is also called the control center of the cell. It contains all the instructions for protein synthesis and the genetic material.  Thus it also helps regulate the cell's activates.

Based on this information, we can assume it is like a computer that controls all activities.

It doesn't store materials, except DNA, it doesn't directly synthesize any molecules, and it doesn't produce energy.

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